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7/31/2019 konstrukcija greda
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PROFESSIONAL TIMBER FRAME
SYSTEM BUILD GUIDE
FOR 2 BAY GARAGES AND CAR PORTS WITH
HIPPED, BARN-END AND GABLE-END ROOFS
trade professional
INCORPORATING THE
SYSTEM
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TWO BAY GARAGES
Beamlock two bay garages are available in two options:
Complete building with tile battens and cedar shingle tiles supplied
Skeletal framework with roof timbers and cladded walls only
(roof battens and cedar tiles not included)
HIPPED ROOF GARAGE WITH
CEDAR SHINGLE TILED ROOF
40 ROOF PITCH
HIPPED ROOF GARAGE
ROOF BATTENS AND CEDAR TILES NOT INCLUDED
40 ROOF PITCH
BARN-END GARAGE WITH
CEDAR SHINGLE TILED ROOF
45 ROOF PITCH
BARN-END GARAGE
ROOF BATTENS AND CEDAR TILES NOT INCLUDED
45 ROOF PITCH
GABLE-END GARAGE WITH
CEDAR SHINGLE TILED ROOF
45 ROOF PITCH
GABLE-END GARAGE
ROOF BATTENS AND CEDAR TILES NOT INCLUDED
45 ROOF PITCH
GABLE-END GARAGE WITH
CEDAR SHINGLE TILED ROOF
28 ROOF PITCH
GABLE-END GARAGE
ROOF BATTENS AND CEDAR TILES NOT INCLUDED
28 ROOF PITCH
ENTRANCE
ENTRANCE
2.6m
2.6m
5.614m
4.94m
5.216m
GARAGE FLOOR PLAN Applies to all garages shown
Beams
Beams with walls
Posts
Braces
Floor Plan Key
2
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3If you have any queries please contact our HELPLINE on 0845 601 7886.
HIPPED ROOF CAR PORT WITH
CEDAR SHINGLE TILED ROOF
40 ROOF PITCH
HIPPED ROOF CAR PORT
ROOF BATTENS AND CEDAR TILES NOT INCLUDED
40 ROOF PITCH
BARN-END CAR PORT WITH
CEDAR SHINGLE TILED ROOF45 ROOF PITCH
BARN-END CAR PORT
ROOF BATTENS AND CEDAR TILES NOT INCLUDED
45 ROOF PITCH
GABLE-END CAR PORT WITH
CEDAR SHINGLE TILED ROOF
45 ROOF PITCH
GABLE-END CAR PORT
ROOF BATTENS AND CEDAR TILES NOT INCLUDED
45 ROOF PITCH
GABLE-END CAR PORT WITH
CEDAR SHINGLE TILED ROOF
28 ROOF PITCH
GABLE-END CAR PORT
ROOF BATTENS AND CEDAR TILES NOT INCLUDED
28 ROOF PITCH
TWO BAY CAR PORTS
Beamlock two bay car ports are available in two options:
Complete building with tile battens and cedar shingle tiles supplied
Skeletal framework with roof timbers and cladded walls only
(roof battens and cedar tiles not included)
ENTRANCE
ENTRANCE
4.94m
5.216m
2.6m
2.6m
5.614m
CAR PORT FLOOR PLAN Applies to all car ports shown
Beams
Posts
Braces
Floor Plan Key
Support Posts
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4
GARAGE AND CAR PORT ERECTIONAlways make sure there is adequate safe and secure access equipment to work comfortably and safely
to the height of your garage/car port.
Note: In order to give clarity to the photographs provided in this guide it was necessary to temporarily
remove some access equipment. This should not be removed in the course of normal construction.
Those constructing the building must ensure that all relevant Health & Safety legislation is complied with.
This includes completion of a risk assessment, access methods and suitable Personal Protective Equipment
(PPE) used.
Throughout the build all timbers that are cut or trimmed in the course of construction should have the
newly exposed surface treated with a proprietary brand of wood preserver.
Ensure a suitable foundation has been laid for your garage or car port prior to construction.
CONTENTS Page(s)
Overview of Garage and Car Port structures 2-3
Garage and Car Port Erection, Foundation Requirements and Use Class 3 4
Section 1: Building the frame (for garages and car ports) 5-12
Section 2: Building the sub-frame (for garages only) 13-15
Section 3: Building the roof structure 16
3.1: Gable-End Roof (both 28 and 45 pitch options) 16-17
3.2: Barn-End Roof 18-19
3.3: Hipped Roof 20
3.4: Battens and Cedar Shingles 21
Component Lists for Garage and, Car Ports 22-23
USE CLASS 3
Factory applied preservative treatment gives compliance for Use Class 3.1* allowing the frame to beexposed to the elements but requiring further application of protecting surface coatings.
Note: To achieve Use Class 3 a secondary protective coat needs to be applied and maintained.
FOUNDATION REQUIREMENTS
Beamlock garages and car ports are to be erected on suitably prepared and level foundations,
in accordance with the Local Building Regulation requirements.
Typically a foundation type is decided upon by relevant information such as soil conditions, frost,
heave, proximity to surrounding vegetation, landscape contour (slope of site), fresh landfill, clay,
sandstone, loamy soil, water table and structural load. These are all relevant issues that may affect thefoundation type (strip, trench, raft or pad foundation). Excavation depth and width, concrete thickness
and proximity of concrete to finished ground level is also very important in selecting the correct
foundation type for your site to save costs.
Note: it is the homeowner or their contractors responsibility to lay
a suitable foundation and is not part of Finnforests service package.
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35
SECTION 1: BUILDING THE FRAME FOR GARAGES AND CAR PORTS
GARAGE FRAME COMPONENTS
A Posts x 6 (138mm x 138mm x 2.165m)
Complete with a metal cruciform and
B Adjustable Base Plate
C Shrouds x 6
D End Plates x 10
E Braces x 6 (48mm x 155mm x 900mm)
F Long Beams x 3 (138mm x 165mm x 4.968m)
Complete with metal beam kits
G Short Beams x 4 (138mm x 165mm x 2.628m)Complete with metal beam kits
A
A
C
B hidden by shroud
GF
E
D
B
C
E
D
If you have any queries please contact our HELPLINE on 0845 601 7886.
F 4.968m
G 2.628m
Components shown above are not to scale.
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6
CAR PORT FRAME COMPONENTS
A Posts x 6 (138mm x 138mm x 2.165m)
Complete with a metal cruciform and
B Adjustable Base Plate
C Shrouds x 8
D End Plates x 10
E Braces x 14 (48mm x 155mm x 900mm)
F Long Beams x 3 (138mm x 165mm x 4.968m)
Complete with metal beam kits
G Short Beams x 4 (138mm x 165mm x 2.628m)
Complete with metal beam kits
H Posts x 2, trimmed (138mm x 138mm x 2.0m)
Complete with Adjustable Base Plate B
A
H
AH
C
B hidden by shroud
GF
E
D
B
C
E
D
F 4.968m
G 2.628m
Components shown above are not to scale.
If you have any queries please contact our HELPLINE on 0845 601 7886.
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7
Mark out all the locations where the bottom of
the post feet will be located on the foundations
(setting out) .
Note: This information can be taken from the
garage/car port floor plans (see picture 9
bottom right).
Slip the timber shroud over the top of each
post and slide down. Temporarily secure thisabove and clear of the metal foot (base plate)
, as this will be permanently fixed later.
Note: The shroud may be required to move
up or down to a temporary position during
assembly and secured later .
Each beam and post (with the exception of the
two support posts on the car port) have pre-cut
mortise slots ready to accept the metal
strengthening bar that protrudes from either
end of the wooden brace .
The metal bar in the brace is offset to one side,
having a timber thickness of 18mm on one side
(thin side) and a thickness of 30mm on the
other (thick side).
All posts and beams are numbered and each
one has to be positioned in the correct place as
well as facing in the right direction in order to
accept the braces correctly.
In order to ensure correct assembly, posts are
marked with a number on the top and a letter to
the side, where beams adjoin .
Beams are marked with a corresponding letter
to the side .
Before assembly all the components should
be laid out and checked that they are in the
right position and that all brace slots on both
the posts and beams correspond to one
another .
Posts should be located by number as indicatedon the build plan floor plans and each letter
marked on the posts must adjoin the
corresponding letter on the beams to ensure
the correct assembly.
9
8
7
6
5
4
3
2
1
32
54
1
25 25
9
6 7
Garage floor plan Car port floor plan
8
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Lay two posts on a flat surface and position
a short beam between them. The two metal
tubes that project from the end of the beam
should be positioned around (above and
below) the single metal tube that projects
from the metal cruciform at the top of
the post. In all cases the beam should be
offered up to the post with the nib in the
beam plate protruding upwards.
The beam is then secured to the posts by
gently hammering a long pin into the post
connection , locking the beam plate to the
cruciform (apply grease to all pins for ease of
insertion/removal).
Note: All pins will stand slightly proud
of the top surface of the post; this
is intentional as a further fixing is required
later .
Once two posts have been joined to a short
beam, with assistance place the newly
formed goalpost vertically in the setting
out positions and temporarily support
(e.g. with scaffold board) .
Check that the post tops are horizontal
using a spirit level and straight edge, or other
means . All post tops must be at the same
level. Establish the desired eaves height by
adjusting the base plates .
Carefully check that the location of the posts
are correct and then for each of the two
posts drill four holes at a slight angle through
the existing openings at the bottom of the
base plate and into the concrete foundations
, sufficient to fix M10 x 100mm anchor
bolts .
With assistance and sufficient support raise
another post into an approximate position
forming a 90 angle to the goalpost. Then
lift (two persons) a long beam to the
horizontal position between the goalpost
and the newly erected post .
Position the projecting tubes on the end of
the beam around the single projecting tube
on the cruciform, located at the top of
the post.
Fix into place by gently hammering fixing
pins to secure the beam to the two
cruciforms, at the top of the posts .18
17
16
15
14
13
12
11
10
10
12
13
15
17 18
16
14
11
8
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The structure will now be more stable. Continue
round the frame in the same manner, erecting posts
and securing each respective beam to form one bay
(two long beams and two short beams) .
At each corner where all the required beams have
been inserted to the posts, end plates are required on
the open ends. These are for structural integrity as
well as being a decorative detail.
End plates are fixed using the same method
of applying a greased pin, gently hammered
into position & .
The top of the post is now finished off by securing a
top plate using two 100mm wood screws. Locate the
four pins that protrude from the top of the posts and
the nibs from the beam plates into the outer holes
and then locate, drill and fix the screws into the tworemaining holes & .
The frame now requires temporary bracing to hold the
posts to the beams at a true angle of 90 and to
ensure that all beams are also horizontal .
To help ensure the frame is completely square,
horizontal, and that the angles between the posts
and beams are a true 90, adjustments can be
made to the height of the base plate using a 34mm
open-end spanner .
Check the uprights with a spirit level and the
diagonals carefully with a long tape measure to
ensure the structure is completely square.
Note: Internal measurement from corner posts 1-5,
2-4, 2-6 and 3-5 should be 5.582m (refer to floor
plan diagrams on page 5).
27
26
25
24
2322
2120
19
19
20 21 22
24
25 26 27
23
9If you have any queries please contact our HELPLINE on 0845 601 7886.
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Now the second bay can be added to the first, by continuing to erect posts
and join beams until the complete two bay frame is erected .
In the same manner as before, end and top plates must be fixed
to all posts .
The frame will now be complete and will require to be checked again to
ensure ALL posts are vertical, ALL beams are horizontal and that the frame
is completely square.
Note: Internal measurement from corner posts 1-6 and 3-4 should be
7.273m (refer to floor plan diagrams on page 5).
Anchor bolts are then secured to all base plates in the same manner as
previously described and the timber shrouds that are temporarily fixed
over the posts can now be dropped down over the base plate to hide
this fixing .
Note: Shrouds should be pinned a sufficient amount above ground level
to avoid direct contact with any standing water (normally 6mm).
Braces are now offered up to the mortise slots to form a connection
between the post and beam. Care must be taken to ensure that the
placement of the braces is correct and that they are orientated in the
right direction (see floor plan diagrams on page 5 for brace positions).
The metal strengthening bar that runs the length of the brace and protrudes
at either end is offset to one side . This leaves the brace with a thickside (30mm of timber on the side of the metal strengthening bar) and a
thin side (18mm of timber on the side of the metal strengthening bar).
The strengthening bar that runs through the brace is pre-drilled with two
holes in either end. In the majority of applications it is the bottom hole
(closest to the long wooden edge of the brace) that is used to secure the
brace. However, where three braces adjoin a single post, or where two
braces join a single post on the corner of the carport model, there is a need
to also use the top hole and a strict sequence of construction is required
in order to complete the assembly correctly.
Note: Check all brace positions carefully before drilling.
Braces should be fixed with the thin side facing the internal faade of
the structure and the thick side the external faade.
Note: There are six braces used in the construction of the garage, whereas there are fourteen used in the
car port. Please check the floor plan diagram on page 5 to identify where these are to be located.
32
31
30
29
28
28 29
30
31
10
Brace pictured frominternal, with thin side
of brace inside thestructure
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For both single and double
brace applications to a single
post, the brace is held to the
inside face of the post and
beam with the thin 18mm
section of timber facing
inwards and the thick
30mm section of timber
facing outwards.
Using the holes in the braces
metal strengthening bar as a
template, mark the positions
to drill two 12mm holes, one in the post and one in
the beam for each brace .
Drill to a depth of 70mm.
The metal ends of the brace are inserted into
position in the corresponding mortise slots on thepost and the beam. Two short securing pins are
greased and gently hammered into the drilled holes
. This secures the metal strengthening bar at
either end of the brace and holds it into position. The
short pins are covered with a timber grommet to
finish off .
Note: Where three braces join a single centre
post, there is a sequence that must be followed in
order to secure all the braces correctly.
For the bracing of the two centre posts to the longcentral beam, the mortise slots are offset to one
side. In order for the braces to match up correctly the
thin side of the brace (with the 18mm section of
timber) should face the smaller section of timber, as
denoted by the position of the mortise, on both the
post and beam.
From the inside of the structure with the centre post
in front of you (looking out of the garage/car port)
measure and drill for the right hand brace using the
bottom hole as a template. Then the centre brace
using the top hole as a template and finally the left
hand brace using the bottom hole as a template .
The braces must also be inserted and secured in
the same order as described above - right, centre
and left .
Note: Where two braces join a single post on the
corner of the car port model, one must be fixed
through the bottom hole of the braces metal
strengthening bar and the other through the top
hole and then fitted in sequence.
Ensure all holes are drilled before fixing braces.
Continue around the frame until all braces are
secured .37
36
33
35
34
33
32 33
36
34 35
37
11
View from inside thestructure looking outat the centre post
Mortise forcentre brace
Mortise to acceptleft hand brace
Drill holeto accept pinthat securesright handbrace
Drill holeto accept pinthat securesleft handbrace
If you have any queries please contact our HELPLINE on 0845 601 7886.
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FOR CAR PORTS ONLY
There are two additional posts that need to be secured halfway along the length of the two outer long beams. These
two posts have a plain top and are 165mm shorter than the standard posts. These do not require bracing and are
for support only.
The bottom of the post is secured to the foundations in the same manner as previously described with a base plate,
having checked that the post is completely upright and that the top of the post is under the horizontal beam in the
correct position. The post is then secured by drilling two vertical holes down through the top of the beam and intothe top of the post. Fixings (6.3mm x 200mm hexagonal drive screws) are then inserted from the top of the beam.
The finished car port frame should now look like the picture below and is now ready for the roof components .38
38
12
Additional centre postsfor car ports
If you have any queries please contact our HELPLINE on 0845 601 7886.
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The garage frame will be of the same overall dimensions but with braces fixed only to the open beam and post joints
as illustrated on the garage floor plan on page 5.
The sub-frame of treated timber that forms the support for the external cladding can now be prepared.
Start with one side first which will then need to be completed before progressing to the second side and then the
rear of the garage.The sole plate, which is the bottom
horizontal length of timber that spans
between posts, is installed first .
This is cut from pressure impregnated
47mm x 100mm sawn timber that is
measured to length and cut to fit snugly
between the shrouds on the posts, where
there is no vehicle access required.
There are three lengths at 5.4m provided
for the side walls and for the rear flank.
In some applications the timber may be
sited onto a dwarf wall or similar feature.
Although the timber has been pre-treated
for external use, it should not come into
direct contact with soaked substrates or
the ground. This can be prevented by applying a damp proof course
(not supplied) or raising the timber slightly on to supports.
The vertical uprights also use 47mm x 100mm sawn and pressure
impregnated timber cut to size from 2.4m lengths. The first uprights to
be installed are those that will be fixed to the posts and span between
the sole plate at the bottom and the underside of the horizontal beam at
the top. The wide face (100mm) of the timber should be fixed flat to the
post to the outside edge . This is so cladding is readily accepted for
fixing later and is affixed to the outer face of the post.
As the shrouds at the bottom of the posts stand proud of the posts,
it will be necessary to carefully measure and cut a small section
from the 47mm x 100mm upright in order that it can be fixed flush to
the post & .
The upright is secured to the post using 100mm galvanised nails for
external application (provided) .44
4342
41
40
39
39 40
41
42 43 44
13
SECTION 2: BUILDING THE SUB-FRAME FOR GARAGES ONLY
Inside ofstructure
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Once the post uprights have been secured in place,
the intermediate uprights can be fixed. There are
seven intermediate uprights for each of the two sides to
be clad .
Measure and mark an equal distance between the
Beamlock posts on each side of the garage. Measure along
the sole plate on the floor and horizontal beam above, to
identify the centre point of the side wall. This is where thefirst intermediate upright will be positioned. Measure the
height between the top of the sole plate and the bottom of
the beam, where the upright will be inserted.
Trim the end of the upright to this measurement and secure
in place using 100mm galvanised nails provided (two to the
top and two to the bottom) spiked in at an angle on either
edge of the upright & .
In the same manner measure, mark and trim a further three
intermediate uprights to be positioned on each side of the
centre upright that has just been secured. This will be atapproximately 600mm centres.
Note: The uprights are to be placed on the outer edge of
the sole plate and beam with the wide face (100mm)
facing outwards. This is so cladding is readily accepted
for fixing later. Care should be taken to ensure the
uprights are secured in the true vertical.
Having secured the sole plate and the uprights into position the side wall
section is now braced with diagonal timbers of 25mm x 100mm in the pattern
shown . At each stud attach the brace using 3no. 3.75mm dia. x 65mm
galvanised nails.
The bracing timber should be cut at the appropriate angle to butt cleanly
against the post at the top and the opposite, corresponding brace at the
bottom and then fixed to the inside of the frame .
The bracing is then nailed to the uprights where the two intersect.
Once all the sub-frame (sole plate, uprights and bracing) is secured
to the garage, the sole plate can be secured to the ground by drilling through
the timber into the foundations and securing with M10 x 100mm anchor
bolts .
There should be three anchor bolts spaced evenly down either side of the
garage sides and two to each of the two back sole plates.
51
50
49
48
4746
45
45
46
48 49 50
51
47
14
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A 25mm x 50 mm cladding stop is now
measured, cut and nailed vertically
through the wide (50mm) face to the
sides of the main posts at the front of
the garage. The cladding stop should
finish flush to the rear corner of the
front post.
The cladding stop is trimmed at an
angle to butt up to the shroud at the
bottom and finishes flush with the top of
the post and is secured using 50mm
galvanised nails.
The cladding stop for the two rear corner
posts is used as a stop for both the side
and rear cladding. It is fixed thought the
wide (50mm) face to the garage sides on
the rear of the posts and projects 25mm beyond the line of the
building. This is to provide a stop for the rear cladding .
The rear of the garage is different to the sides as there is an
additional post in the centre of the wall. The sole plate and the
uprights are cut and fixed in the same manner as previously
described, however there are four intermediate uprights to
each of the two sections at the rear of the garage.
The sole plate and beam should be measured and marked so
that the intermediate uprights are fixed in an equal distance
from each other, within each of the two rear sections at
approximately 500mm centres. Cross bracing is then cut and
fixed as previously described .
Measure the correct overlap requirement of 125mm for the cladding
around the building and mark the position as a guide on the vertical
uprights, the subframe and the cladding stop to ensure a horizontal
finish for the cladding.
Starting at the bottom and working up as far as the main horizontal
beams, cladding can now be measured and trimmed to the correct
length and nailed using 50mm galvanised nails.
Cladding is nailed to the uprights and posts, to the external face of the
garage. Each piece of cladding should overlap the piece below by25mm and should be nailed 30mm from the bottom edge. Each nail
only passes through the top piece of
cladding and this piece of cladding pinches
the top of the piece below.
The sections of cladding that adjoin the
shrouds will need to be cut to suit, to ensure
a flush finish .
The finished garage should now be rigid and
ready for roof preparation .SECTION 3:56
55
54
53
52
5352
55
56
15
54
47 x 100mmupright
CladdingStop
If you have any queries please contact our HELPLINE on 0845 601 7886.
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All roofing rafters are pre-cut and pre-treated, ready
for assembly.
Note: Rafters must always be erected in pairs as
opposed to completing a single side first.
The wall plate, 47mm x 100mm sawn and preservativetreated timber that has been pre-notched, marked for
rafters and cut to length, is nailed (using 100mm
galvanised nails) to the outer edges of the two short
perimeter beams to the front and rear of the garage or
car port .
To secure the bottom of each rafter, place the birds
mouth (cut into each rafter), over the wall plate .
The tops of the rafters, which are cut to an angle, will
then be secured to a horizontal pre-treated ridge board, which is already marked with an X to identify
where each pair of rafters will be secured.
Note: The ridge board shown will need to move over
to the left so the rafters align with the outer X mark.
3.1: GABLE-END ROOF (28 AND 45 PITCH OPTIONS)
The 30 rafters for the roof are now assembled.
Note: You will need temporary support for the pre-treated ridge board.
Starting with the two end pairs of rafters, nail to the wall plate at the bottom
using 100mm galvanised nails and rest together at the top.
The ridge board is then pushed up horizontally into the inverted V joint of
the rafters at the top and is pinched into position where it can be nailed
in the correct position using 3 x 75mm galvanised nails .62
61
60
59
58
57
57 58
59
60
16
A
E
B
C
D
F
X mark forposition of rafters
SECTION 3: BUILDING THE ROOF
GABLE-END ROOF COMPONENTS
A Ridge Board x 1200mm x 25mm x 5.6m
B Roof Bracings x 4100mm x 25mm x 4.8m
C Common Rafters x 30
28 Pitch: 150mm x 47mm x 3.36m
45 Pitch: 150mm x 47mm x 3.99m
D Wall Plates x 2100mm x 47mm x 5.6m
E Studding x 12100mm x 47mm x 3.0m
F Collars x 7100mm x 47mm x 3.0m
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65
61 62
Rafters must be secured at equal intervals along the width of
the roof structure , starting with the two pairs of end rafters,
which must be fixed flush to the outer face of the
47mm x 100mm wall plate using 100mm galvanised nails.
Note: The rafters for 45 roofs should be fixed to the wall
plate using 2no. 4.2mm dia. x 100mm galvanised nails.
28 roofs will require 4no. 4.2mm dia. x 100mm galvanised
nails, or can be fixed using BAT truss clips, but these are
not supplied with the kit.
Rafters are secured to the pre-marked ridge board using
75mm galvanised nails.
A long length of straight timber temporarily secured in a
vertical position will assist in achieving a straight edge guide
from which the rafters can be started .
These are followed by the middle rafters and continue by
infilling the gaps, halving the spaces as you proceed and not
working in a line. This prevents pressure accumulating in onearea and stops distortion of the ridge board.
Continue along the roof assembling the rafters in pairs .
Once complete cross bracing of the rafters is required.
To cross brace, 25mm x 100mm sawn and treated timber is
cut and nailed using 65mm galvanised nails at a diagonal to
prevent movement & .
Once all the bracing is secured 47mm x 100mm horizontal
strengthening timbers (collars) are added to every second pairof rafters (see on page17) by bolting through the pre-drilled
holes in the rafter and the collar and securing with the
12 x 120mm bolts provided.
Now the second set of vertical uprights that form the gable-
end are measured, cut and fixed to the end beam at the
bottom and the end pairs of rafters at the top. These vertical
uprights are located to the garage sides, directly above the
lower intermediate uprights and are secured in the same
manner with the wide face (100mm) facing out and secured
with 100mm galvanised nails.
Now continue the cladding (in the manner previously
described) up the gable end up to the rafters and trim at an
angle to finish flush with the top of the rafter.
75
6766
65
64
63
63
64
66
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17If you have any queries please contact our HELPLINE on 0845 601 7886.
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3.2: BARN-END ROOF
The barn-end roof differs from the gable-end
roof in construction, but assembly is the same
with the exception that the first pairs of rafters
to be erected are the third pair in from the ends
of the garage .
Secure the wall plates as previously described.
Identify the common rafters (those of the same
length that span from the ridge to the wall
plate). Start by securing the third pair of rafters
from each end (first pair of full or commonlength rafters) followed by the middle rafters and
then infill with the remainder.
Rafters are secured to the 47 x 100mm pre-
treated wall plate that sits on the outer
perimeter of the front and back of the frame by
using 2no. 4.2mm dia. x 100mm galvanised
nails, and secured to the ridge and hip boards
using 75mm galvanised nails .
The five central vertical uprights (studding) and
horizontal cross piece (wall plate) that will
form the barn end are supplied pre-cut from
47mm x 100mm sawn and treated timber, and
should be formed into a frame to support the
smaller end rafters.
Note: The frame should be constructed so
that the narrow 47mm edge is facing the
outside of the structure. This is contrary to
the rest of the framework.
The frame is constructed by nailing the cross
piece of timber to the five upright timbers atequal intervals. The frame should then be
positioned centrally on top of the long side
beams on the outer edge and nailed into
position .70
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A
EF
B
G
IH
C
D
BARN-END ROOF COMPONENTS
A Ridge Board x 1200mm x 25mm x 4.0m
B Collars x 7100mm x 47mm x 3.0m
C Roof Bracings x 4100mm x 25mm x 4.8m
D Common Rafters x 22150mm x 47mm x 3.99m
E Wall Plates (notched) x 2100mm x 47mm x 5.6m
F Studding x 12100mm x 47mm x 3.0m
G Wall Plates x 2100mm x 47mm x 1.65m
H Jack Rafters x 14150mm x 47mm x various
I Hip Boards x 4175mm x 38mm x 1.810m
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The small hip boards that form the angle of the
barn-end are now secured onto the horizontal
timber frame (on top of the five central uprights)
and the angles are checked for accuracy .
The hip boards on the barn-end will overlap the
gable-end and should not be trimmed.
The remaining barn-end rafters at each end are
secured to the horizontal cross beam frame (on
top of the five central uprights). The rafters will
overlap the gable-end and should not be trimmed
& .
47mm x 100mm sawn timber studding is then
cut and secured wide face out (100mm) to infill
the gable-end on either side of the garage, on the
outer edge of the beam. This is directly above the
bottom intermediate uprights.
Note: This should revert back to the 100mmwide edge facing outwards to support the
cladding. The remaining two pairs of rafters at
each end of the garage are now secured to
both the wall plate at the bottom, identified by
the "birds mouth" and the small hip boards at
the top, identified by the pre-cut angle.
Once complete, cross bracing of the rafters is
required. To cross brace, 25mm x 100mm sawn
and treated timber is cut and nailed diagonally
across the inside of the roof structure using50mm galvanised nails .
The roof will now be near completion and ready
for some horizontal strengthening collars to be
secured.
47mmx 100mm treated timbers are pre-cut and
drilled to span horizontally between every second
pair of rafters and are bolted into place. All rafters
have been pre-drilled to accept the bolts for the
fixing of the strengthening collars .
The roof structure is now complete and you can
continue the cladding (in the manner previously
described) to the gable-end up to the rafters and
trim at an angle to finish flush with the top of the
rafter. Cladding is cut to profile and inserted up
and around the jack rafters and hip boards that
form the barn-end to close in the side.
The rafters are now ready to accept your choice
of roofing material, which must overlap the outer
rafter by a minimum of 25mm to overhang the
cladding.
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19If you have any queries please contact our HELPLINE on 0845 601 7886.
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3.3: HIPPED ROOF
The wall plate, where the bottom of the rafters are to be secured, will need to be marked around the perimeter of
the garage/car port.
Special care should be taken as there are an extra pair of rafters along the width of the roof.
Rafters should be placed at an equal distance from the corners of the frame (where the diagonal hip boards will be
located).The four longest rafters (two pairs) for the roof that run from front to back at the centre of the garages/car
ports width are now assembled, as previously described, in pairs. You will need temporary support for the small
ridge board, which has been measured and marked to identify where each pair of rafters will be secured.
Again, the birds mouth is fitted over the outer edge of the wall plate and secured using 2no. 4.2mm dia. x 100mm
galvanised nails, and the angle at the other end will fit flush to the diagonal ridge board using 75mm galvanised nails .
Next, the four long hip boards that splay the roof are secured from the ends of the small ridge board, where the
four rafters join.
Further rafters are then fixed in pairs, according to length, down each of the four diagonal hip boards.
The rafters are now ready to accept your choice of roofing material.
20
HIPPED ROOF COMPONENTS
A Ridge Board x 1200mm x 25mm x 400mm
B Common & Jack Rafters x 50
150mm x 47mm x various
C Wall Plates x 4100mm x 47mm x 5.0m
D Hip Boards x 4175mm x 38mm x 4.69m
C
D
A
B
If you have any queries please contact our HELPLINE on 0845 601 7886.
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21
3.4: BATTENS AND CEDAR SHINGLES
Pre-treated 25mm x 50mm battens are nailed into the rafters
at right angles, starting from the eaves and working up towards
the ridge.
Using 65mm galvanised nails, secure the first length of batten
horizontally and flush to the bottom of the rafters to overlap their
outer edge by 25mm each side and overlapping the top of the
wall cladding .
Then secure battens to the outer rafters running from the ridge
at the top, down to meet the previously (first) fitted horizontal
batten at the bottom. Again this batten should overlap the outer
rafters by 25mm, finishing flush to the end of the first batten at
the bottom. This creates an overhang and neatly covers the top
of the cladding.
Starting from the bottom continue laying the batten up the roof
at intervals of 140mm. At the top you will need to secure afurther horizontal batten to fix the ridge tiles to. When a batten
has to be joined, this should be done on a rafter and not butted
unsupported.
Cedar shingles come in widths of between 75mm - 320mm and
are approximately 400mm long. Shingles should be laid with the
thick edge facing towards the ground. Shingles should be mixed
by using a selection of tiles from opened bundles to ensure that
a variation of widths are used to form a random pattern.
By selecting the appropriate size cedar shingles create asmall overhang to the sides of the roof. This overhang should
be no more than 20mm and the shingles must be securely
fastened .
Cedar shingles must be fixed using either silicone bronze or
stainless steel 31mm x 1.8mm angular ring nails, nailed 20mm
from each side and 40mm above the exposure line. The first
course (bottom) of shingles must be laid as a double course
with each tile being approximately 6mm away from its
neighbour. Vertical joints should overlap by at least 30mm.
Further courses are added in a similar manner.
Cedar shingles can be cut with a handsaw to fit the required
dimensions for angles and widths.
Once the roof has been tiled a ridge tile (flexible from 20 - 50)
is fixed in the same manner over the ridge and, where
applicable, any hipped areas. The ridge tiles should be laid from
both ends of the roof, working in towards the centre. The thick
edge of the ridge tile should be facing outward and laid at an
interval of 167mm, giving a coverage of 6 tiles per linear metre.
At the centre of the ridge where tiles from either end meet, a
further ridge tile is cut to length and secured over the twoadjoining centre tiles to form a saddle to finish the roof.
Note: Where there are hips these should be completed first
and the ridge second .79
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COMPONENTS SIZE (W x D x L) QUANTITY OF COMPONENTS PER GARAGE
FRAME 45 Barn-End 40 Hipped 45 Gable-End 28 Gable-End
Posts 138mm x 138mm x 2.165m 6 6 6 6
Short Beams 138mm x 165mm x 2.628m 4 4 4 4
Long Beams 138mm x 165mm x 4.968m 3 3 3 3
Braces (Reinforced) 48mm x 155mm x 900mm 6 6 6 6
Wall Studs 100mm x 47mm x 2.4m 30 30 30 30
Sole Plates 100mm x 47mm x 5.4m 2 2 2 2
Sole Plates 100mm x 47mm x 2.7m 2 2 2 2
Diagonal Wall Bracings 100mm x 25mm x 3.6m 6 6 6 6
End Plates 138mm x 165mm 10 10 10 10
Corner Stops 50mm x 25mm x 2.4m 4 4 4 4
Feather-Edge Sides 150mm x 19mm x 5.4m 40 40 40 40
Feather-Edge Back 150mm x 19mm x 5.7m 20 20 20 20Feather-Edge Gable 150mm x 19mm x 5.4m 27 - 27 20
ROOF
Wall Plates (Notched) 100mm x 47mm x 5.6m 2 2 2 2
Wall Plates (45 Barn-end only) 100mm x 47mm x 1.65m 2 - - -
Wall Plates (40 Hipped only) 100mm x 47mm x 5.0m - 2 - -
Collars 100mm x 47mm x 3.0m 6 - 8 8
Ridge Board 200mm x 25mm 1 x 4.0m 1 x 400mm 1 x 5.6m 1 x 5.6m
Hip Boards 175mm x 38mm 4 x 1.81m 4 x 4.69m - -
Common & Jack Rafters 150mm x 47mm x various lengths 36 50 30 30Gable Roof Kit (Studwork) 100mm x 47mm x 3.0m 12 - 12 12
Roof Bracings 100mm x 25mm 4.8m 4 - 4 4
Cedar Shingle Tiles (Bundle) 75-320mm widths x 400mm long 21 20 21 17
Cedar Shingle Ridge Tiles 75-320mm widths x 450mm long 77 130 36 36
Battens 25mm x 50mm 380m 336m 380m 320m
2 BAY GARAGES
22
COMPONENTS SIZE (mm) QUANTITY
GENERAL 45 Barn-End 40 Hipped 45 Gable-End 28 Gable-End
M10 Anchor Bolts (foot plates) 10 24 24 24 24
M10 Anchor Bolts (sole plates) 10 10 10 10 10
Bolts & Washers 12 x 120 12 - 16 16
Long Pins 194 24 24 24 24
Short Pins 80 12 12 12 12
Wooden Grommets 12 12 12 12 12
Top Plates (pre-drilled) 110 x 110 6 6 6 6
Screws 100 12 12 12 12
Galvanised Nails 1KG BAG 0.5KG BAG 1KG BAG 0.5KG BAG 1KG BAG 0.5KG BAG 1KG BAG 0.5KG BAG
50 2 1 2 - 2 1 2 1
65 5 1 5 - 5 1 4 1
75 1 - 1 1 1 - 1 -
100 3 1 3 1 3 1 3 1
Annular Ring Nails 31 5 1 6 - 5 - 4 1
O
O
O
O
O
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2 BAY CAR PORTS
ALL SIZES ARE APPROXIMATE
Posts come complete with a metal cruciform inserted in the top of each and an adjustable base plate inserted into the bottom.
Trimmed posts come complete with an adjustable base plate inserted into the bottom.
Beams come complete with metal beam kits at either end.
Each bundle pack covers approximately 2.5 square metres.
These items are only available with optional roof pack.O
23
COMPONENTS SIZE (W x D x L) QUANTITY OF COMPONENTS PER CAR PORT
FRAME 45 Barn-End 40 Hipped 45 Gable-End 28 Gable-End
Posts 138mm x 138mm x 2.165m 6 6 6 6
Posts (Trimmed) 138mm x 138mm x 2.0m 2 2 2 2
Short Beams 138mm x 165mm x 2.628m 4 4 4 4
Long Beams 138mm x 165mm x 4.968m 3 3 3 3
Braces (Reinforced) 48mm x 155mm x 900mm 14 14 14 14
End Plate 138mm x 165mm 10 10 10 10
Feather-Edge Gable 150mm x 19mm x 5.4m 27 - 27 20
ROOF
Wall Plates (Notched) 100mm x 47mm x 5.6m 2 2 2 2
Wall Plates (45 Barn-end only) 100mm x 47mm x 1.65m 2 - - -
Wall Plates (40 Hipped only) 100mm x 47mm x 5.0m - 2 - -
Collars 100mm x 47mm x 3.0m 6 - 8 8Ridge Board 200mm x 25mm 1 x 4.0m 1 x 400mm 1 x 5.6m 1 x 5.6m
Hip Boards 175mm x 38mm 4 x 1.81m 4 x 4.69m - -
Common & Jack Rafters 150mm x 47mm x various lengths 36 50 30 30
Roof Bracings 100mm x 25mm 4.8m 4 - 4 4
Cedar Shingle Tiles (Bundle) 75-320mm widths x 400mm long 21 20 21 17
Cedar Shingle Ridge Tiles 75-320mm widths x 450mm long 77 130 36 36
Battens 25mm x 50mm 380m 336m 380m 320m
COMPONENTS SIZE (mm) QUANTITYGENERAL 45 Barn-End 40 Hipped 45 Gable-End 28 Gable-End
M10 Anchor Bolts (foot plates) 10 24 24 24 24
Bolts & Washers 12 x 120 12 - 16 16
Long Pins 194 24 24 24 24
Short Pins 80 28 28 28 28
Wooden Grommets 12 28 28 28 28
Top Plates (pre-drilled) 110 x 110 6 6 6 6
Screws 100 12 12 12 12
Galvanised Nails 1KG BAG 0.5KG BAG 1KG BAG 0.5KG BAG 1KG BAG 0.5KG BAG 1KG BAG 0.5KG BAG
50 1 - - - 1 - 1 -
65 5 1 5 - 5 1 4 1
75 1 - 1 1 1 - 1 -
100 2 - 2 - 2 - 2 -
Annular Ring Nails 31 5 1 6 - 5 - 4 1
O
O
O
O
O
If you have any queries please contact our HELPLINE on 0845 601 7886.
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For more information and a list of distributors in your area
visit www.finnforest.co.uk or call 0800 00 44 44.
Wood is the only building material that is truly renewable,
if well managed. Forest certification schemes give assurance
that the timber is legal and from sustainable sources.
Finnforest UK sources certified timber over uncertified
and is an approved Chain of Custody supplier.
FF2783 February 2008.
The photographs in this brochure are for illustration purposes only.
All measurements and dimensions are accurate at time of going to press.All approximate dimensions have been highlighted.
Finnforest reserves the right to change or revise the product specification
and range without notice.
trade professional
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