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General Mulling Information
General Mull Information - Mull Types ............................................................................................................................. 3Clad Ultimate Casement Mull Types ................................................................................................................................9Clad Ultimate Replacement Casement Mull Types ........................................................................................................23Clad Direct Glaze Mull Types .........................................................................................................................................37Clad Direct Glaze Round Top Mull Types .......................................................................................................................49Clad Narrow Frame (Contemporary) Direct Glaze Mull Types ........................................................................................61Clad Ultimate Double Hung - NG 2.0 Mull Types ............................................................................................................75Clad Ultimate Glider Mull Types .....................................................................................................................................91Multi-High, Multi-Wide Mulling ......................................................................................................................................101Clad Ultimate Inswing French Door Mull Types ............................................................................................................107Clad Ultimate Outswing French Door Mull Types .........................................................................................................111Clad Ultimate Sliding French Door Mull Types .............................................................................................................115Clad Sliding Patio Door Mull Types ..............................................................................................................................119
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General Mulling Information
General Mull Information - Mull TypesMarvin offers a variety of mull options for many of the Marvin window and door projects. Some mulls can be done in the factory.Others would need to be done in the field. Some mulls create a certified assembly according to third-party testing.
Marvin Mull Options:
Marvin-Supplied Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
3/8" Mull Reinforcement (MRF): A two-piece, thermally-broken aluminum reinforcement that allows for either factory or fieldassembly of the mullion.
Solid Space Mull: Solid continuous wood piece is used to reinforce the units and space them apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. LVL Mull Reinforcement: Laminated Veneered Lumber is used as a solid space mull.
◦ LVL is 1.7 to 1.9 times stronger than regular wood.
◦ 1" and 2" widths are available from Marvin. Space Mull: Non-continuous blocks of wood are used to space units apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. Stud Pocket: An exterior mull cap is applied to the units with a space in between the units to allow for installation of an existing
structure in the opening. Units are shipped with temporary blocking. Remove before installation.
Field Supplied and Applied (these are other available mulling options, not provided by Marvin) Tube Mull: Tube aluminum or steel used to reinforce mulled assemblies.
Flat Mull: Flat Steel or Aluminum used to reinforce mulled assemblies.
These reinforcement types must be primed to prevent corrosion.
Anchoring Special considerations need to be made when installing mulled assemblies. Mullions create point loads that need to be
transferred to the rough opening. For Marvin standard, MRF, LVL, and space mulls, the ends of the mull need to be fastened oneach side of the splice with either jamb screws or brackets. Aluminum, steel and other structural mulls need to be anchoreddirectly to the rough opening or building structure.
Section Details:
Cross sections will illustrate the mulling of two units.
Tributary and Span:
Tributary Width - The area supported by the mullion. In the case of a vertical mull, this is equal to the sum of half of the width of eachunit on each side of the mull.
Span - The length of the mullion
TributaryWidth
Span
TributaryWidth
TributaryWidth
TributaryWidth
Span
Ribbon Mull Stacked Mull
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General Mull Information - Mull TypesCharts:
Mullion Performance Charts
In accordance with the International Building Code, mullion performance is determined through either physical testing or calculations. A combination of both methods has been used to develop the performance charts. Calculated mulls limit deflection to L/175 (L=length of mullion) and limit allowable stress to 2/3 of the mull material’s allowable stress. Physically tested mulls often outperform calculations and this will show up on the charts as jumps in performances.
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8824-58
59606162 PG 65 DP 50 636465666768 DP 40 697071727374 PG50 DP 30 75767778798081828384 DP 20 85 DP 50 86878889909192939495969798 PG4099
100101102103104105106107108109110 DP30111 DP20112113114115116117118119120
Span
Tributary Width
Tested Sizes
Tested Size
Calculated Range
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Field-Supplied and Applied Mull TypesMull-5 19972255Marvin Architectural Detail Manual
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Marvin Mull TypesNOTE: Mulls displayed with Clad Ultimate Casement frames, but other products can also be used.
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Marvin Mull TypesNOTE: Mulls displayed with Clad Ultimate Casement frames, but other products can also be used.
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Clad Mulling
Clad Ultimate Casement Mull TypesMarvin offers a variety of mull options for many of the Marvin window and door projects. This document is a compilation of mullingoptions for the Clad Ultimate Casement product.
Mull Types: Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
3/8" Mull Reinforcement (MRF): A two-piece, thermally-broken aluminum reinforcement that allows for either factory or fieldassembly of the mullion.
Space Mull: Non-continuous blocks of wood are used to space units apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. Solid Space Mull: Solid continuous wood piece is used to reinforce the units and space them apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. LVL Mull: Laminated Veneered Lumber is used as a solid space mull.
◦ LVL is 1.7 to 1.9 times stronger than regular wood.
◦ 1" and 2" widths are available. Stud Pocket: An exterior mull cap is applied to the units with a space in between the units to allow for installation around an
existing structure in the opening.
Products IncludedClad Ultimate Casement and Awning
Clad Ultimate Casement Picture
Clad Ultimate Venting Picture
Clad Ultimate Pushout Casement and Awning
Clad Ultimate French Casement and Push Out French Casement
IZ3 StormPlus
Certified Mull Installation Methods:Masonry Clips
Jamb Screws
Structural Brackets
Tributary and Span:
Tributary Width - In the case of a vertical mull, this is equal to the sum of half of the width of each unit on each side of the mull. Inthe case of a horizontal mull, this is equal to the sum of half of the height of each unit on each side of the mull.
Span - The length of the mullion.
TributaryWidth
Span
TributaryWidth
TributaryWidth
TributaryWidth
Span
Ribbon Mull Stacked Mull
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Section Details: Clad Ultimate Casement Mulling Types (Continued)Space Mulls and Solid Space Mulls are available in3/8", 1", 2", 3", 4" and 6" widths.
Marvin provides interior mull trim for mulls up to 2".
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Clad Ultimate Casement Mulling - Standard Frame (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8824-58 DP 65
59606162 PG 65 DP 50 636465666768 DP 40 697071727374 PG50 DP 30 75767778798081828384 DP 20 85 DP 50 86878889909192939495969798 PG4099
100101102103104105106107108109110 DP30111 DP20112113114115116117118119120
Span
Tributary Width
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Clad Ultimate Casement Mulling - 3/8" Mull Reinforcement (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8824-58
596061 DP65626364656667686970717273 DP50747576777879808182 DP408384858687888990919293949596979899
100 DP40101102103104 DP30105106107 DP20108109110111112113 DP25114115116117118119120
Span
Tributary Width
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Clad Ultimate Casement Mulling - 1" LVL (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8824-58
596061 DP65626364656667686970717273747576 DP5077787980818283848586878889909192 DP4093949596979899
100 DP30101102103104105106107108109110 DP20111112113114115116117118119120
Tributary Width
Span
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Clad Ultimate Casement Mulling - 2" LVL (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8824-58
596061 DP65626364656667686970717273747576 DP5077787980818283848586878889909192 DP4093949596979899
100 DP30101102103104105106107108109110111112113114115 DP20116117118119120
Span
Tributary Width
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Clad Ultimate Casement Mulling - 3/8" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8824-58
5960 DP6561626364656667 DP5068697071727374 DP407576777879808182 DP3083848586878889909192 DP2093949596979899
100101102103104105106107108109110111112113114115116117118119120
Tributary Width
Span
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Clad Ultimate Casement Mulling - 1" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8824-58
5960 DP6561626364656667 DP5068697071727374 DP407576777879808182 DP3083848586878889909192 DP2093949596979899
100101102103104105106107108109110111112113114115116117118119120
Tributary Width
Span
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Clad Ultimate Casement Mulling - 2" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8824-58
596061 DP6562636465666768697071 DP5072737475767778798081 DP408283848586878889909192939495 DP3096979899
100101102103104105106107108 DP20109110111112113114115116117118119120
Tributary Width
Span
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Clad Ultimate Casement Mulling - 3" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8824-58
596061 DP6562636465666768697071 DP507273747576777879808182 DP408384858687888990919293949596 DP30979899
100101102103104105106107108109110111112113114115 DP20 116117118119120
Span
Tributary Width
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Clad Ultimate Casement Mulling - 4" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88
24-58
59
60
61
62 DP65
63
64
65
66
67
68
69
70
71 DP50
72
73
74
75
76
77
78
79
80
81 DP40
82
83
84
85
86
87
88
89
90
91
92
93
94 DP30
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109 DP20
110
111
112
113
114
115
116
117
118
119
120
Span
Tributary Width
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Clad Ultimate Casement Mulling - 6" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8824-58
596061 DP6562636465666768697071 DP5072737475767778798081 DP4082838485868788899091929394 DP309596979899
100101102103104105106107108109110111 DP20112113114115116117118119120
Span
Tributary Width
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Clad Ultimate Replacement Casement Mull TypesMarvin offers a variety of mull options for many of the Marvin window and door projects. This document is a compilation of mullingoptions for the Clad Ultimate Replacement Casement product.
Mull Types: Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
3/8" Mull Reinforcement (MRF): A two-piece, thermally-broken aluminum reinforcement that allows for either factory or fieldassembly of the mullion.
Space Mull: Non-continuous blocks of wood are used to space units apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. Solid Space Mull: Solid continuous wood piece is used to reinforce the units and space them apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. LVL Mull: Laminated Veneered Lumber is used as a solid space mull.
◦ LVL is 1.7 to 1.9 times stronger than regular wood.
◦ 1" and 2" widths are available. Stud Pocket: An exterior mull cap is applied to the units with a space in between the units to allow for installation around an
existing structure in the opening.
Products IncludedClad Ultimate Replacement Casement
Clad Ultimate Replacement Awning
Clad Ultimate Replacement Pushout Casement
Clad Ultimate Replacement Pushout Awning
Clad Ultimate Replacement Casement/Awning Picture
NOTE: Multi-High Multi-Wide Assemblies with any side that exceed 72” in either direction will be shipped with a temporary blockingaround the entire perimeter of the assembly to provide support during shipping and handling.
Certified Mull Installation Methods: Jamb Screws
Tributary and Span:
Tributary Width - In the case of a vertical mull, this is equal to the sum of half of the width of each unit on each side of the mull. Inthe case of a horizontal mull, this is equal to the sum of half of the height of each unit on each side of the mull.
Span - The length of the mullion.
TributaryWidth
Span
TributaryWidth
TributaryWidth
TributaryWidth
Span
Ribbon Mull Stacked Mull
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Clad Mulling
Section Details: Clad Ultimate Replacement Casement Mulling Types (Continued)Space Mulls and Solid Space Mulls areavailable in 3/8", 1", 2", 3", 4" and 6" widths.
Marvin provides interior mull trim for mullsup to 2".
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Clad Mulling
Clad Ultimate Replacement Casement Mulling-Standard Frame (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 722425262728293031 PG50 DP5032333435363738394041 DP 40 424344 DP3045464748495051 DP205253545556575859606162636465666768 PG406970717273747576777879 PG308081828384
Span
Tributary Width
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Clad Ultimate Replacement Casement Mulling - 3/8" Mull Reinforcement (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 7224252627282930313233343536373839404142 DP50434445464748495051525354555657585960616263646566 DP4067686970717273747576 DP407778 DP 307980818283848586878889 DP 209091929394959697
Tributary Width
Span
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Clad Ultimate Replacement Casement Mulling - 1" LVL (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 7224-31
323334353637383940 PG50 DP5041424344454647484950 DP4051525354 DP3055565758596061 DP2062636465666768697071727374 DP207576777879808182
Span
Tributary Width
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Clad Ultimate Replacement Casement Mulling - 2" LVL (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 7224-31
323334353637383940414243444546 PG50 DP50474849505152535455565758 DP4059606162 DP30636465666768 DP20697071727374 DP3075767778798081828384 DP20858687888990919293
Tributary Width
Span
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Clad Ultimate Replacement Casement Mulling - 3/8" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 7224252627282930313233 DP5034353637383940414243 DP4044454647 DP3048495051525354 DP205556575859606162636465666768697071
Tributary Width
Span
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Clad Ultimate Replacement Casement Mulling - 1" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 7224252627282930313233343536373839 DP5040414243444546 DP4047484950 DP30515253545556 DP205758596061626364656667686970717273747576
Span
Tributary Width
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Clad Ultimate Replacement Casement Mulling - 2" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 7224-31
32333435 DP50363738394041424344454647484950 DP405152535455 DP3056575859606162 DP206364656667686970717273747576777879808182
Tributary Width
Span
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Clad Mulling
Clad Ultimate Replacement Casement Mulling - 3" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 7224-31
3233343536 DP50373839404142434445464748495051525354 DP405556575859 DP3060616263646566 DP206768697071727374757677787980818283848586878889
Tributary Width
Span
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Clad Ultimate Replacement Casement Mulling - 4" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 7224-41
424344454647 DP504849505152535455565758 DP405960616263 DP30646566676869 DP207071727374757677787980818283848586878889909192939495
Tributary Width
Span
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Clad Ultimate Replacement Casement Mulling - 6" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 7224-41
42434445464748495051 DP5052535455565758596061626364 DP4065666768 DP3069707172737475 DP2076777879808182838485868788899091929394959697
Tributary Width
Span
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Clad Mulling
Clad Direct Glaze Mull TypesMarvin offers a variety of mull options for many of the Marvin window and door projects. This document is a compilation of mullingoptions for the Clad Direct Glaze product.
Mull Types: Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
3/8" Mull Reinforcement (MRF): A two-piece, thermally-broken aluminum reinforcement that allows for either factory or fieldassembly of the mullion.
Space Mull: Non-continuous blocks of wood are used to space units apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. Solid Space Mull: Solid continuous wood piece is used to reinforce the units and space them apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. LVL Mull: Laminated Veneered Lumber is used as a solid space mull.
◦ LVL is 1.7 to 1.9 times stronger than regular wood.
◦ 1" and 2" widths are available. Stud Pocket: An exterior mull cap is applied to the units with a space in between the units to allow for installation around an
existing structure in the opening.
Products IncludedClad Direct Glaze
IZ3 Clad Direct Glaze
Certified Mull Installation MethodsMasonry Clips
Jamb Screws
Structural Brackets
Tributary and Span:
Tributary Width - In the case of a vertical mull, this is equal to the sum of half of the width of each unit on each side of the mull. Inthe case of a horizontal mull, this is equal to the sum of half of the height of each unit on each side of the mull.
Span - The length of the mullion.
TributaryWidth
Span
TributaryWidth
TributaryWidth
TributaryWidth
Span
Ribbon Mull Stacked Mull
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Section Details: Clad Ultimate Casement Mulling Types (Continued)Space Mulls and Solid Space Mulls are avail-able in 3/8", 1", 2", 3", 4" and 6" widths.
Marvin provides interior mull trim for mulls upto 2".
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Clad Direct Glaze Mulling - Standard Frame (Ribbon or Stacked Assembly)
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86363840424446 DP6548505254565860626466 DP50687072 DP40747678 DP308082848688 DP 209092 PG50949698
100102 PG40104106108110 DP30112114 DP20116118120
Tributary Width
Span
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Clad Direct Glaze Mulling - 3/8" Mull Reinforcement (Ribbon or Stacked Assembly)
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 83638404244464850 DP655254565860626466687072 DP507476788082 DP408486889092 DP30949698
100102104106 DP20108110112114116118120
Span
Tributary Width
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Clad Direct Glaze Mulling - 1" LVL (Ribbon or Stacked Assembly)
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 8636384042444648505254 DP65565860626466687072 DP507476788082 DP408486889092 DP30949698
100102104106 DP20108110112114116118120
Span
Tributary Width
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Clad Mulling
Clad Direct Glaze Mulling - 2" LVL (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88363840424446 DP6548505254565860626466687072 DP507476788082 DP40848688909294 DP309698
100102104106108110 DP20112114116118120
Span
Tributary Width
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Clad Direct Glaze Mulling - 3/8" Solid Space Mull (Ribbon or Stacked Assembly)
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 8363840424446485052 DP65545658606264666870 DP50727476 DP4078808284 DP308688909294 DP209698
100102104106108110112114116118120
Tributary Width
Span
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Clad Direct Glaze Mulling - 1" Solid Space Mull (Ribbon or Stacked Assembly)
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 8363840424446485052 DP6554565860626466687072 DP507476788082 DP4084868890 DP3092949698
100 DP20102104106108110112114116118120
Span
Tributary Width
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Clad Direct Glaze Mulling - 2" Solid Space Mull (Ribbon or Stacked Assembly)
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86363840424446485052 DP6554565860626466687072 DP507476788082 DP40848688909294 DP309698
100102104106108 DP20110112114116118120
Span
Tributary Width
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8
Clad Direct Glaze Mulling - 3" Solid Space Mull (Ribbon or Stacked Assembly)
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 836384042444648 DP65505254565860626466687072 DP507476788082 DP40848688909294 DP309698
100102104106108110 DP20112114116118120
Span
Tributary Width
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Clad Mulling
88
Clad Direct Glaze Mulling - 4" and 6" Solid Space Mull (Ribbon or Stacked Assembly)
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 863638404244464850 DP655254565860626466687072 DP507476788082 DP40848688909294 DP309698
100102104106108110112 DP20114116118120
Span
Tributary Width
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Clad Mulling
Clad Direct Glaze Round Top Mull TypesMarvin offers a variety of mull options for many of the Marvin window and door projects. This document is a compilation of mullingoptions for the Clad Direct Glaze Round Top product.
Mull Types: Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
3/8" Mull Reinforcement (MRF): A two-piece, thermally-broken aluminum reinforcement that allows for either factory or fieldassembly of the mullion.
Space Mull: Non-continuous blocks of wood are used to space units apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. Solid Space Mull: Solid continuous wood piece is used to reinforce the units and space them apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. LVL Mull: Laminated Veneered Lumber is used as a solid space mull.
◦ LVL is 1.7 to 1.9 times stronger than regular wood.
◦ 1" and 2" widths are available. Stud Pocket: An exterior mull cap is applied to the units with a space in between the units to allow for installation around an
existing structure in the opening.
Products IncludedClad Direct Glaze Round Top
4/4 Polygon
IZ3 Clad Direct Glaze Round Top
Certified Mull Installation MethodsMasonry Clips
Jamb Screws
Structural Brackets
Tributary and Span
Tributary Width - In the case of a vertical mull, this is equal to the sum of half of the width of each unit on each side of the mull. Inthe case of a horizontal mull, this is equal to the sum of half of the height of each unit on each side of the mull.
Span - The length of the mullion.
TributaryWidth
Span
TributaryWidth
TributaryWidth
TributaryWidth
Span
Ribbon Mull Stacked Mull
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Section Details: Clad Direct Glaze Round Top Mulling TypesMull-50 19972255Marvin Architectural Detail Manual
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Clad Mulling
Section Details: Clad Direct Glaze Round Top Mulling Types (Continued)Space Mulls and Solid Space Mulls are avail-able in 3/8", 1", 2", 3", 4" and 6" widths.
Marvin provides interior mull trim for mulls up to2".
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Clad Mulling
8
Clad Direct Glaze Round Top Mulling - Standard Frame (Ribbon or Stacked Assembly)
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 83638404244 DP6546485052545658 DP50606264 DP4066687072 DP307476788082 DP208486889092949698
100102104106108110112114116118120
Tributary Width
Span
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Clad Mulling
Clad Direct Glaze Round Top Mulling - 3/8" Mull Reinforcement (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8836384042444648 DP65505254565860626466687072 DP50747678808284 DP408688909294 DP309698100102104 DP20106108110112114116118120
Tributary Width
Span
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Clad Mulling
Clad Direct Glaze Round Top Mulling - 1" LVL (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8836384042444648 DP6550525456586062646668707274 DP50767880828486 DP408890929496 DP3098
100102104106 DP20108110112114116118120
Tributary Width
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Clad Mulling
Clad Direct Glaze Round Top Mulling - 2" LVL (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 883638404244464850 DP655254565860626466687072 DP507476788082 DP4084868890929496 DP3098
100102104106108110112114 DP20116118120
Span
Tributary Width
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Clad Mulling
Clad Direct Glaze Round Top Mulling - 3/8" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 883638404244464850 DP655254565860626466687072 DP507476788082 DP4084868890929496 DP3098
100102104106108110112114 DP20116118120
Span
Tributary Width
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Clad Mulling
88
Clad Direct Glaze Round Top Mulling - 1" Solid Space Mull (Ribbon or Stacked Assembly)
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 8636384042444648 DP655052545658606264666870 DP5072747678 DP4080828486 DP308890929496 DP2098
100102104106108110112114116118120
Span
Tributary Width
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Clad Mulling
88
Clad Direct Glaze Round Top Mulling - 2" Solid Space Mull (Ribbon or Stacked Assembly)
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 8636384042444648 DP6550525456586062646668707274 DP50767880828486 DP408890929496 DP3098
100102104106108 DP20110112114116118120
Tributary Width
Span
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Clad Mulling
Clad Direct Glaze Round Top Mulling - 3" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8836384042444648 DP65505254565860626466687072 DP 50747678808284 DP4086889092949698 DP30
100102104106108110112 DP20114116118120
Span
Tributary Width
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Clad Mulling
Clad Direct Glaze Round Top Mulling - 4" and 6" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 8836384042444648 DP65505254565860626466687072 DP50747678808284 DP4086889092949698 DP30
100102104106108110 DP20112114116118120
Tributary Width
Span
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Clad Mulling
Clad Narrow Frame (Contemporary) Direct Glaze Mull TypesMarvin offers a variety of mull options for many of the Marvin window and door projects. This document is a compilation of mullingoptions for the Clad Narrow Frame (Contemporary) Direct Glaze product.
Mull Types: Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
3/8" Mull Reinforcement (MRF): A two-piece, thermally-broken aluminum reinforcement that allows for either factory or fieldassembly of the mullion.
Space Mull: Non-continuous blocks of wood are used to space units apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. Solid Space Mull: Solid continuous wood piece is used to reinforce the units and space them apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. LVL Mull: Laminated Veneered Lumber is used as a solid space mull.
◦ LVL is 1.7 to 1.9 times stronger than regular wood.
◦ 1" and 2" widths are available. Stud Pocket: An exterior mull cap is applied to the units with a space in between the units to allow for installation around an
existing structure in the opening.
Products IncludedClad Narrow Frame (Contemporary) Direct Glaze
NOTE: Multi-High Multi-Wide Assemblies with any side that exceed 72” in either direction will be shipped with a temporary blockingaround the entire perimeter of the assembly to provide support during shipping and handling.
Certified Mull Installation Methods Jamb Screws
Tributary and Span:
Tributary Width - In the case of a vertical mull, this is equal to the sum of half of the width of each unit on each side of the mull. Inthe case of a horizontal mull, this is equal to the sum of half of the height of each unit on each side of the mull.
Span - The length of the mullion.
TributaryWidth
Span
TributaryWidth
TributaryWidth
TributaryWidth
Span
Ribbon Mull Stacked Mull
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Section Details: Clad Narrow Frame (Contemporary) Direct Glaze Mulling TypesMull-62 19972255Marvin Architectural Detail Manual
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Clad Mulling
Section Details: Clad Narrow Frame (Contemporary) Direct Glaze Mulling Types (Continued)Space Mulls and Solid Space Mulls are avail-able in 3/8", 1", 2", 3", 4" and 6" widths.
Marvin provides interior mull trim for mulls upto 2".
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Clad Mulling
8-120
Clad Narrow Frame (Contemporary) Direct Glaze Mulling - Standard Frame (Ribbon or Stacked Assembly)
20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 83638404244 PG50 DP504648505254 DP40565860 DP30626466 DP20687072747678808284 PG25868890929496
Span
Tributary Width
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Clad Mulling
Clad Narrow Frame (Contemporary) Direct Glaze Mulling - 3/8" Mull Reinforcement (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88-1203638404244 DP5046485052545658606264666870 DP40727476 DP 30788082 DP 208486889092949698100102104106108110112114116118120
Tributary Width
Span
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Clad Mulling
Clad Narrow Frame (Contemporary) Direct Glaze Mulling - 1" LVL (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88-1203638404244 DP504648505254565860 DP40626466 DP30687072 DP2074767880828486889092949698
Span
Tributary Width
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Clad Mulling
Clad Narrow Frame (Contemporary) Direct Glaze Mulling - 2" LVL (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88-1203638404244 DP504648505254565860 DP40626466 DP30687072 DP2074767880828486889092949698
Span
Tributary Width
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Clad Mulling
Clad Narrow Frame (Contemporary) Direct Glaze Mulling - 3/8" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88-1203638404244 DP50464850525456 DP40586062 DP30646668 DP20707274767880828486889092
Span
Tributary Width
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Clad Mulling
Clad Narrow Frame (Contemporary) Direct Glaze Mulling - 1" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 '88-1203638404244 DP5046485052545658 DP40606264 DP30666870 DP2072747678808284868890929496
Span
Tributary Width
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Clad Mulling
Clad Narrow Frame (Contemporary) Direct Glaze Mulling - 2" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88-120363840424446 DP50485052545658 DP40606264 DP3066687072 DP2074767880828486889092949698
100
Span
Tributary Width
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Clad Mulling
Clad Narrow Frame (Contemporary) Direct Glaze Mulling - 3" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88-12036384042444648 DP5050525456586062 DP40646668 DP30707274 DP20767880828486889092949698
100102104
Span
Tributary Width
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Clad Mulling
Clad Narrow Frame (Contemporary) Direct Glaze Mulling - 4" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88-12036384042444648 DP505052545658606264 DP40666870 DP30727476 DP207880828486889092949698
100102104106108
Span
Tributary Width
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Clad Mulling
Clad Narrow Frame (Contemporary) Direct Glaze Mulling - 6" Solid Space Mull (Ribbon or Stacked Assembly)20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88-120363840424446485052 DP505456586062646668 DP407072 DP3074767880 DP20828486889092949698
100102104106108110112114
Span
Tributary Width
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Clad Mulling
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Clad Mulling
Clad Ultimate Double Hung - NG 2.0 Mull TypesMarvin offers a variety of mull options for many of the Marvin window and door projects. This document is a compilation of mullingoptions for the Clad Ultimate Double Hung - Next Generation 2.0 product.
Mull Types: Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
3/8" Mull Reinforcement (MRF): A two-piece, thermally-broken aluminum reinforcement that allows for either factory or fieldassembly of the mullion.
Space Mull: Non-continuous blocks of wood are used to space units apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. Solid Space Mull: Solid continuous wood piece is used to reinforce the units and space them apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. LVL Mull: Laminated Veneered Lumber is used as a solid space mull.
◦ LVL is 1.7 to 1.9 times stronger than regular wood.
◦ 1" and 2" widths are available. Stud Pocket: An exterior mull cap is applied to the units with a space in between the units to allow for installation around an
existing structure in the opening.
Products IncludedClad Ultimate Double Hung Next Generation 2.0
IZ3 Clad Ultimate Double Hung Next Generation 2.0
Certified Mull Installation MethodsMasonry Clips
Tributary and Span:
Tributary Width - In the case of a vertical mull, this is equal to the sum of half of the width of each unit on each side of the mull. Inthe case of a horizontal mull, this is equal to the sum of half of the height of each unit on each side of the mull.
Span - The length of the mullion.
TributaryWidth
Span
TributaryWidth
TributaryWidth
TributaryWidth
Span
Ribbon Mull Stacked Mull
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Clad Mulling
Section Details: Clad Ultimate Double Hung - NG 2.0 Mulling TypesMull-76 19972255Marvin Architectural Detail Manual
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Clad Mulling
Section Details: Clad Ultimate Double Hung - NG 2.0 Mulling Types (Continued)Mull-77 19972255Marvin Architectural Detail Manual
Ver 2017.6 2017-12-18
Clad Mulling
Section Details: Clad Ultimate Double Hung - NG 2.0 Mulling Types (Continued)Space Mulls and Solid Space Mulls areavailable in 3/8", 1", 2", 3", 4" and 6" widths.
Marvin provides interior mull trim for mulls upto 2".
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Clad Mulling
Section Details: Clad Ultimate Double Hung - NG 2.0 Mulling Types (Continued)Space Mulls and Solid Space Mulls are also available in 1", 2", 3" and 4" widths.
Marvin provides interior mull trim for mulls up to 2".
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Clad Mulling
Clad Ultimate Double Hung - NG 2.0 Mulling - Standard Frame (Vertical) (Ribbon or Stacked Assembly)CN 16 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60CN Frame OM 21.25 25.25 29.25 31.25 33.25 35.25 37.25 39.25 41.25 43.25 45.25 47.25 49.25 51.25 53.25 55.25 57.25 59.25 61.25 63.25 65.25
12 31.5
14 35.5
16 39.5 DP65
18 43.5
20 47.5 PG65
22 51.5 DP 50
24 55.5 DP40
26 59.5 DP30
28 63.5 DP20
30 67.5 PG50
32 71.5
34 75.5
36 79.5
38 83.5 PG 25
40 87.5
42 91.5
44 95.5
Tributary Width
Span
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Clad Mulling
Clad Ultimate Double Hung - NG 2.0 Mulling - Standard Frame (Horizontal) (Ribbon or Stacked Assembly)Frame OM 21.25 25.25 29.25 33.25 37.25 41.25 45.25 49.25 53.25 57.25 61.25 65.25 69.25 73.25
51.188
53.188
55.188
57.188
59.188
61.188
63.188
65.188
67.188 DP65
69.188
71.188
73.188
75.188
77.188
79.188
81.188
83.188
85.188
87.188
89.188
91.188
93.188 DP50
95.188
97.188
99.188
101.188
103.188
105.188
107.188
109.188
111.188
113.188
115.188
117.188
119.188
121.188
123.188
125.188
127.188 DP50 DP45
129.188
131.188
133.188
135.188
137.188
139.188
141.188
143.188
145.188
147.188
149.188
151.188
153.188
Span
Tributary Width (combined unit heights/2)
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Clad Mulling
Clad Ultimate Double Hung - NG 2.0 Mulling - 1" LVL (Vertical) (Ribbon or Stacked Assembly)CN 16 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60CN Frame OM 21.25 25.25 29.25 31.25 33.25 35.25 37.25 39.25 41.25 43.25 45.25 47.25 49.25 51.25 53.25 55.25 57.25 59.25 61.25 63.25 65.25
12 31.5
14 35.5
16 39.5
18 43.5
20 47.5 DP65
22 51.5
24 55.5
26 59.5
28 63.5
30 67.5
32 71.5
34 75.5 DP50
36 79.5
38 83.5 DP40
40 87.5 DP 30
42 91.5
44 95.5
46 99.5 DP 20
48 103.5
50 107.5
52 111.5
54 115.5
56 119.5
58 123.5
60 127.5
Span
Tributary Width
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Clad Mulling
Clad Ultimate Double Hung - NG 2.0 Mulling - 2" LVL (Vertical) (Ribbon or Stacked Assembly)CN 16 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60CN Frame OM 21.25 25.25 29.25 31.25 33.25 35.25 37.25 39.25 41.25 43.25 45.25 47.25 49.25 51.25 53.25 55.25 57.25 59.25 61.25 63.25 65.25
12 31.5
14 35.5
16 39.5
18 43.5
20 47.5 DP65
22 51.5
24 55.5
26 59.5
28 63.5
30 67.5
32 71.5
34 75.5
36 79.5 DP50
38 83.5
40 87.5
42 91.5 DP40
44 95.5
46 99.5
48 103.5
50 107.5 DP30
52 111.5
54 115.5
56 119.5 DP20
58 123.5
60 127.5
Tributary Width
Span
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Clad Mulling
Clad Direct Glaze Mulling - 3/8" Mull Reinforcement (Ribbon or Stacked Assembly)CN 16 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60CN Frame OM 21.25 25.25 29.25 31.25 33.25 35.25 37.25 39.25 41.25 43.25 45.25 47.25 49.25 51.25 53.25 55.25 57.25 59.25 61.25 63.25 65.25
12 31.5
14 35.5
16 39.5
18 43.5
20 47.5
22 51.5 DP65 DP65
24 55.5
26 59.5
28 63.5
30 67.5
32 71.5 DP50
34 75.5
36 79.5
38 83.5 DP40
40 87.5
42 91.5
44 95.5 DP30
46 99.5 DP20
48 103.5
50 107.5
52 111.5
54 115.5
56 119.5
58 123.5
60 127.5
Tributary Width
Span
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Clad Mulling
Clad Ultimate Double Hung - NG 2.0 Mulling - 3/8" Solid Space Mull (Ribbon or Stacked Assembly)CN 16 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60CN Frame OM 21.25 25.25 29.25 31.25 33.25 35.25 37.25 39.25 41.25 43.25 45.25 47.25 49.25 51.25 53.25 55.25 57.25 59.25 61.25 63.25 65.25
12 31.5
14 35.5
16 39.5 DP65
18 43.5
20 47.5
22 51.5 DP50
24 55.5
26 59.5 DP40
28 63.5 DP30
30 67.5
32 71.5
34 75.5 DP20
36 79.5
38 83.5
40 87.5
42 91.5
44 95.5
46 99.5
48 103.5
Tributary Width
Span
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Clad Mulling
Clad Ultimate Double Hung - NG 2.0 Mulling - 1" Solid Space Mull (Ribbon or Stacked Assembly)CN 16 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60CN Frame OM 21.25 25.25 29.25 31.25 33.25 35.25 37.25 39.25 41.25 43.25 45.25 47.25 49.25 51.25 53.25 55.25 57.25 59.25 61.25 63.25 65.25
12 31.5
14 35.5
16 39.5
18 43.5 DP65
20 47.5
22 51.5
24 55.5
26 59.5
28 63.5 DP50
30 67.5
32 71.5 DP40
34 75.5
36 79.5
38 83.5 DP30
40 87.5
42 91.5 DP20
44 95.5
46 99.5
48 103.5
50 107.5
52 111.5
54 115.5
56 119.5
58 123.5
60 127.5
Span
Tributary Width
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Clad Mulling
Clad Ultimate Double Hung - NG 2.0 Mulling - 2" Solid Space Mull (Ribbon or Stacked Assembly)CN 16 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60
CN Frame OM 21.25 25.25 29.25 31.25 33.25 35.25 37.25 39.25 41.25 43.25 45.25 47.25 49.25 51.25 53.25 55.25 57.25 59.25 61.25 63.25 65.25
12 31.5
14 35.5
16 39.5
18 43.5
20 47.5
22 51.5 DP65
24 55.5
26 59.5
28 63.5
30 67.5
32 71.5
34 75.5 DP50
36 79.5
38 83.5 DP40
40 87.5
42 91.5 DP30
44 95.5
46 99.5
48 103.5
50 107.5 DP20
52 111.5
54 115.5
56 119.5
58 123.5
60 127.5
Span
Tributary Width
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Clad Mulling
Clad Ultimate Double Hung - NG 2.0 Mulling - 3" Solid Space Mull (Ribbon or Stacked Assembly)CN 16 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60CN Frame OM 21.25 25.25 29.25 31.25 33.25 35.25 37.25 39.25 41.25 43.25 45.25 47.25 49.25 51.25 53.25 55.25 57.25 59.25 61.25 63.25 65.25
12 31.5
14 35.5
16 39.5
18 43.5
20 47.5 DP65
22 51.5
24 55.5
26 59.5
28 63.5
30 67.5
32 71.5
34 75.5 DP50
36 79.5
38 83.5
40 87.5 DP40
42 91.5
44 95.5
46 99.5 DP30
48 103.5
50 107.5
52 111.5 DP20
54 115.5
56 119.5
58 123.5
60 127.5Span
Tributary Width
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Clad Mulling
Clad Ultimate Double Hung - NG 2.0 Mulling - 4" Solid Space Mull (Ribbon or Stacked Assembly)CN 16 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60CN Frame OM 21.25 25.25 29.25 31.25 33.25 35.25 37.25 39.25 41.25 43.25 45.25 47.25 49.25 51.25 53.25 55.25 57.25 59.25 61.25 63.25 65.25
12 31.5
14 35.5
16 39.5
18 43.5
20 47.5 DP65
22 51.5
24 55.5
26 59.5
28 63.5
30 67.5
32 71.5
34 75.5 DP50
36 79.5
38 83.5
40 87.5 DP40
42 91.5
44 95.5
46 99.5 DP30
48 103.5
50 107.5
52 111.5 DP20
54 115.5
56 119.5
58 123.5
60 127.5Span
Tributary Width
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Clad Ultimate Double Hung - NG 2.0 Mulling - 6" Solid Space Mull (Ribbon or Stacked Assembly)CN 16 20 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60CN Frame OM 21.25 25.25 29.25 31.25 33.25 35.25 37.25 39.25 41.25 43.25 45.25 47.25 49.25 51.25 53.25 55.25 57.25 59.25 61.25 63.25 65.25
12 31.5
14 35.5
16 39.5
18 43.5
20 47.5 DP65
22 51.5
24 55.5
26 59.5
28 63.5
30 67.5
32 71.5
34 75.5
36 79.5 DP50
38 83.5
40 87.5
42 91.5
44 95.5 DP40
46 99.5
48 103.5
50 107.5
52 111.5 DP30
54 115.5
56 119.5 DP20
58 123.5
60 127.5
Span
Tributary Width
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Clad Mulling
Clad Ultimate Glider Mull TypesMarvin offers a variety of mull options for many of the Marvin window and door projects. This document is a compilation of mullingoptions for the Clad Ultimate Glider product.
Mull Types: Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
3/8" Mull Reinforcement (MRF): A two-piece, thermally-broken aluminum reinforcement that allows for either factory or fieldassembly of the mullion.
Space Mull: Non-continuous blocks of wood are used to space units apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. Solid Space Mull: Solid continuous wood piece is used to reinforce the units and space them apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. LVL Mull: Laminated Veneered Lumber is used as a solid space mull.
◦ LVL is 1.7 to 1.9 times stronger than regular wood.
◦ 1" and 2" widths are available. Stud Pocket: An exterior mull cap is applied to the units with a space in between the units to allow for installation of an existing
structure in the opening.
Products IncludedClad Ultimate Glider
Certified Mull Installation MethodsMasonry Clips
Jamb Screws
Structural Brackets
Tributary and Span:
Tributary Width - In the case of a vertical mull, this is equal to the sum of half of the width of each unit on each side of the mull. Inthe case of a horizontal mull, this is equal to the sum of half of the height of each unit on each side of the mull.
Span - The length of the mullion.
TributaryWidth
Span
TributaryWidth
TributaryWidth
TributaryWidth
Span
Ribbon Mull Stacked Mull
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Section Details: Clad Ultimate Glider Mulling Types (Continued)Space Mulls and Solid Space Mulls are avail-able in 3/8", 1", 2", 3", 4" and 6" widths.
Marvin provides interior mull trim for mulls up to2".
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Clad Mulling
Clad Ultimate Glider Mulling - Standard Frame Vertical (Ribbon or Stacked Assembly)CN 30 36 40 46 50 56 60 70 80 90 100CN Frame OM 35 1/2 41 1/2 47 1/2 53 1/2 59 1/2 65 1/2 71 1/2 83 1/2 95 1/2 107 1/2 119 1/2
30 35 1/2
36 41 1/2DP 50
40 47 1/2
46 53 1/2DP 40
50 59 1/2DP 30
56 65 1/2 DP 20
60 71 1/2
Span
Tributary Width
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Clad Mulling
Clad Ultimate Glider Mulling - 3/8" MRF, 1" LVL, 2" LVL (Vertical) (Ribbon or Stacked Assembly)CN 30 36 40 46 50 56 60 70 80 90 100CN Frame OM 35 1/2 41 1/2 47 1/2 53 1/2 59 1/2 65 1/2 71 1/2 83 1/2 95 1/2 107 1/2 119 1/2
30 35 1/2
36 41 1/2
40 47 1/2
46 53 1/2DP 50
50 59 1/2
56 65 1/2
60 71 1/2
Span
Tributary Width
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Clad Mulling
Clad Ultimate Glider Mulling - 3/8" Solid Space Mull (Vertical) (Ribbon or Stacked Assembly)CN 30 36 40 46 50 56 60 70 80 90 100CN Frame OM 35 1/2 41 1/2 47 1/2 53 1/2 59 1/2 65 1/2 71 1/2 83 1/2 95 1/2 107 1/2 119 1/2
30 35 1/2
36 41 1/2 DP 50
40 47 1/2
46 53 1/2
50 59 1/2DP 40
56 65 1/2DP 30
60 71 1/2DP 20
Tributary Width
Span
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Clad Mulling
Clad Ultimate Glider Mulling - 1" Solid Space Mull (Vertical) (Ribbon or Stacked Assembly)CN 30 36 40 46 50 56 60 70 80 90 100CN Frame OM 35 1/2 41 1/2 47 1/2 53 1/2 59 1/2 65 1/2 71 1/2 83 1/2 95 1/2 107 1/2 119 1/2
30 35 1/2
36 41 1/2
40 47 1/2 DP 50
46 53 1/2
50 59 1/2
56 65 1/2
60 71 1/2DP 40 DP 30
Span
Tributary Width
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Clad Mulling
Clad Ultimate Glider Mulling - 1" and 2" LVL (Horizontal) (Ribbon or Stacked Assembly)CN 30 36 40 46 50 56 60CN Frame OM 35 1/2 41 1/2 47 1/2 53 1/2 59 1/2 65 1/2 71 1/2
30 35 1/2
36 41 1/2
40 47 1/2
46 53 1/2DP 50
50 59 1/2
56 65 1/2
60 71 1/2
66 77 1/2 DP 40
70 83 1/2
76 89 1/2 DP 30
80 95 1/2
86 101 1/2
90 107 1/2DP 20
96 113 1/2
Tributary Width
Span
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Clad Mulling
Clad Ultimate Glider Mulling - Solid Space Mull (2", 3", 4" and 6") (Ribbon or Stacked Assembly)CN 30 36 40 46 50 56 60 70 80 90 100CN Frame OM 35 1/2 41 1/2 47 1/2 53 1/2 59 1/2 65 1/2 71 1/2 83 1/2 95 1/2 107 1/2 119 1/2
30 35 1/2
36 41 1/2
40 47 1/2DP 50
46 53 1/2
50 59 1/2
56 65 1/2
60 71 1/2
Tributary Width
Span
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General Mulling Information
Multi-High, Multi-Wide MullingMarvin offers a variety of mull options for many of the Marvin window and door projects. Some mulls can be done in the factory.Others would need to be done in the field. Some mulls create a certified assembly according to third-party testing.
Marvin Mull Options:
Marvin-Supplied Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
3/8" Mull Reinforcement (MRF): A two-piece, thermally-broken aluminum reinforcement that allows for either factory or fieldassembly of the mullion.
Solid Space Mull: Solid continuous wood piece is used to reinforce the units and space them apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. LVL Mull Reinforcement: Laminated Veneered Lumber is used as a solid space mull.
◦ LVL is 1.7 to 1.9 times stronger than regular wood.
◦ 1" and 2" widths are available from Marvin. Space Mull: Non-continuous blocks of wood are used to space units apart.
◦ 3/8", 1", 2", 3", 4" and 6" widths are available. Stud Pocket: An exterior mull cap is applied to the units with a space in between the units to allow for installation of an existing
structure in the opening.
Field Supplied and Applied Tube Mull: Tube aluminum or steel used to reinforce mulled assemblies.
Flat Mull: Flat Steel or Aluminum used to reinforce mulled assemblies.
NOTE: Multi-High Multi-Wide Assemblies with any side that exceed 72” in either direction will be shipped with a temporary blockingaround the entire perimeter of the assembly to provide support during shipping and handling.
Certified Mull Installation MethodsMasonry Clips
Jamb Screws
Structural Brackets
Anchoring Special considerations need to be made when installing mulled assemblies. Mullions create point loads that need to be
transferred to the rough opening. For Marvin standard, MRF, LVL, and space mulls, the ends of the mull need to be fastened oneach side of the splice with either jamb screws or brackets. Aluminum, steel and other structural mulls need to be anchoreddirectly to the rough opening or building structure.
Tributary and Span:
Tributary Width - The area supported by the mullion. In the case of a vertical mull, this is equal to the sum of half of the width of eachunit on each side of the mull.
Span - The length of the mullion
TributaryWidth
SpanTributary
Width
Span
Reinforcement
Rei
nfor
cem
ent
2 Wide 2 High 2 Wide 2 High
Multi-Wide Multi-High Mull
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General Mulling Information
Multi-High Multi-Wide (Full Frame 3/8" Mull Reinforcement)Mullion Performance Charts
In accordance with the Intern
24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88485052 DP 50545658 DP 40606264 PG 6566 DP 3068707274 PG 40 DP 2576788082 DP 2084868890 PG 5092949698
100102104106108 PG 25110112114116118120
Span
Tributary Width
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Multi-High Multi-Wide (Narrow Frame 3/8" Mull Reinforcement)24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 884850 DP 4052545658 DP 5060 DP 206264 DP 3066687072747678 DP 408082848688 DP 20909294
Tributary Width
Span
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General Mulling Information
Multi-High Multi-Wide (Full Frame 1" LVL)24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 884850 DP 505254 DP 405658 DP 656062 DP 306466687072747678 DP 5080 DP 40 DP 30 DP 20828486889092949698
100102104106108110112114116118120
Span
Tributary Width
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Multi-High Multi-Wide (Full Frame 2" LVL)24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88485052545658 DP 65606264666870727476788082 DP 50848688 DP 4090929496 DP 3098
100102104106 DP 20108110112114116118120
Span
Tributary Width
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Clad Mulling
Clad Ultimate Inswing French Door Mull TypesMarvin offers a variety of mull options for many of the Marvin window and door projects. This document is a compilation of mullingoptions for the Clad Ultimate Inswing French Door product.
Mull Types: Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
2" LVL Mull: Laminated Veneered Lumber is used as a solid space mull.
Products IncludedClad Ultimate Inswing French Door
IZ3 Clad Ultimate Inswing French Door
Certified Mull Installation MethodsMasonry Clips
Jamb Screws
Structural Brackets
Tributary and Span:
Tributary Width - In the case of a vertical mull, this is equal to the sum of half of the width of each unit on each side of the mull. Inthe case of a horizontal mull, this is equal to the sum of half of the height of each unit on each side of the mull.
Span - The length of the mullion.
TributaryWidth
Span
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Clad Mulling
Clad Ultimate Inswing French Door Mulling - All Mull TypesNOTE: Includes CUIFD with transoms of 1 frame and 1 sash (French Door Transoms, CUDH NG 2.0 Transoms, Clad Direct GlazeTransoms or Clad Ultimate Casement Transoms.
48 50 52 54 56 58 60 62.75
60.625 DP 50
72.625
PG 40
84.625
96.625 DP 30
110.719
DP 20
125.813
Span
Tributary Width
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Clad Mulling
Clad Ultimate Outswing French Door Mull TypesMarvin offers a variety of mull options for many of the Marvin window and door projects. This document is a compilation of mullingoptions for the Clad Ultimate Outswing French Door product.
Mull Types: Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
2" LVL Mull: Laminated Veneered Lumber is used as a solid space mull.
Products IncludedClad Ultimate Outswing French Door
IZ3 Clad Ultimate Outswing French Door
Certified Mull Installation MethodsMasonry Clips
Jamb Screws
Structural Brackets
Tributary and Span:
Tributary Width - In the case of a vertical mull, this is equal to the sum of half of the width of each unit on each side of the mull. Inthe case of a horizontal mull, this is equal to the sum of half of the height of each unit on each side of the mull.
Span - The length of the mullion.
TributaryWidth
Span
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Section Details: Clad Ultimate Outswing French Door Mulling TypesMull-112 19972255Marvin Architectural Detail Manual
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Clad Mulling
Section Details: Clad Ultimate Outswing French Door Mulling Types (Continued)Mull-113 19972255Marvin Architectural Detail Manual
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Clad Mulling
Clad Ultimate Outswing French Door Mulling - All Mull TypesNOTE: Includes CUOFD with transoms of 1 frame and 1 sash (French Door Transoms, CUDH NG 2.0 Transoms, Clad Direct GlazeTransoms or Clad Ultimate Casement Transoms.
48 50 52 54 56 58 60 62.75
60.625 DP 50
72.625
PG 40
84.625
96.625 DP 30
110.719
DP 20
125.813
Span
Tributary Width
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Clad Mulling
Clad Ultimate Sliding French Door Mull TypesMarvin offers a variety of mull options for many of the Marvin window and door projects. This document is a compilation of mullingoptions for the Clad Ultimate Sliding French Door product.
Mull Types: Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
2" LVL Mull: Laminated Veneered Lumber is used as a solid space mull.
Products IncludedClad Ultimate Sliding French Door
IZ3 Clad Ultimate Sliding French Door
Certified Mull Installation MethodsMasonry Clips
Jamb Screws
Structural Brackets
Tributary and Span:
Tributary Width - In the case of a vertical mull, this is equal to the sum of half of the width of each unit on each side of the mull. Inthe case of a horizontal mull, this is equal to the sum of half of the height of each unit on each side of the mull.
Span - The length of the mullion.
TributaryWidth
Span
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Section Details: Clad Ultimate Sliding French Door Mulling TypesMull-116 19972255Marvin Architectural Detail Manual
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Clad Mulling
Section Details: Clad Ultimate Sliding French Door Mulling Types (Continued)Mull-117 19972255Marvin Architectural Detail Manual
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Clad Mulling
Clad Ultimate Sliding French Door Mulling - All Mull TypesNOTE: Includes CUSFD with transoms of 1 frame and 1 sash (French Door Transoms, CUDH NG 2.0 Transoms, Clad Direct GlazeTransoms or Clad Ultimate Casement Transoms.
48 50 52 54 56 58 60 62.75
60.625 DP 50
72.625
PG 40
84.625
96.625 DP 30
110.719
DP 20
125.813
Span
Tributary Width
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Clad Mulling
Clad Sliding Patio Door Mull TypesMarvin offers a variety of mull options for many of the Marvin window and door projects. This document is a compilation of mullingoptions for the Clad Sliding Patio Door product.
Mull Types: Standard Mull: Two units mulled directly together without any reinforcement or space mulls between the frames.
2" LVL Mull: Laminated Veneered Lumber is used as a solid space mull.
Products IncludedClad Sliding Patio Door
Certified Mull Installation MethodsMasonry Clips
Jamb Screws
Structural Brackets
Tributary and Span:
Tributary Width - In the case of a vertical mull, this is equal to the sum of half of the width of each unit on each side of the mull. Inthe case of a horizontal mull, this is equal to the sum of half of the height of each unit on each side of the mull.
Span - The length of the mullion.
TributaryWidth
Span
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Section Details: Clad Sliding Patio Door Mulling TypesMull-120 19972255Marvin Architectural Detail Manual
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Clad Mulling
Section Details: Clad Sliding Patio Door Mulling Types (Continued)Mull-121 19972255Marvin Architectural Detail Manual
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Clad Mulling
Clad Sliding Patio Door Mulling - All Mull TypesNOTE: Includes CSPD with transoms of 1 frame and 1 sash (French Door Transoms, CUDH NG 2.0 Transoms, Clad Direct GlazeTransoms or Clad Ultimate Casement Transoms.
48 50 52 54 56 58 60 62.75
60.625 DP 50
72.625
PG 40
84.625
96.625 DP 30
110.719
DP 20
125.813
Span
Tributary Width
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