Unless otherwise specified, all dimensions on drawings and in charts are in inches and dimensions shown in parentheses are in millimeters.

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FIG. 1950-1962 TELESCOPING CHANNEL

Section Properties* X-X Axis Y-Y Axis

Weight Area of Section

Moment Of Inertia

Section Modulus

Radius of Gyration

Moment Of Inertia

Section Modulus

Radius of Gyration

lbs/ft kg/m in.2 cm2 in.4 cm4 in.3 cm3 in. cm in.4 cm4 in.3 cm3 in. cm

1.93 (2.87) .458 (2.95) .253 (10.53) .253 (4.15) .743 (1.89) .276 (11.49) .294 (4.82) .776 (1.97)

*Section properties are based on nominal metal thickness and overall dimensions

Description: Telescoping Channel (17/8” X 17/8” 12 gauge channel – fits over 15/8” X 15/8” channels 9/16” (14.29) holes on 17/8” (47.63) centers)

FIG. 1950 TELESCOPING CHANNEL

Section Properties* X-X Axis Y-Y Axis

Weight Area of Section

Moment Of Inertia

Section Modulus

Radius of Gyration

Moment Of Inertia

Section Modulus

Radius of Gyration

lbs/ft kg/m in.2 cm2 in.4 cm4 in.3 cm3 in. cm in.4 cm4 in.3 cm3 in. cm

1.66 (2.47) .386 (2.49) .160 (6.66) .194 (3.18) .640 (1.63) .172 (7.16) .212 (3.47) .664 (1.69)

*Section properties are based on nominal metal thickness and overall dimensions

Description: 3-Hole Channel (15/8” X 15/8” 12 gauge channel with 9/16” (14.29) holes on 17/8” (47.63) centers on three sides)

FIG. 1960 3-HOLE CHANNEL

Section Properties* X-X Axis Y-Y Axis

Weight Area of Section

Moment Of Inertia

Section Modulus

Radius of Gyration

Moment Of Inertia

Section Modulus

Radius of Gyration

lbs/ft kg/m in.2 cm2 in.4 cm4 in.3 cm3 in. cm in.4 cm4 in.3 cm3 in. cm

3.60 (5.36) .847 (5.46) .413 (17.20) .422 (6.92) .698 (1.77) .448 (18.65) .477 (7.82) .727 (1.85)

*Section properties are based on nominal metal thickness and overall dimensions

Description: 3-Hole Channel (17/8” X 17/8” 12 gauge channel with 9/16” (14.29) holes on 17/8” (47.63) centers on three sides)

FIG. 1950 & 1960 COMBINATION TELESCOPING CHANNEL

Material: Carbon steel Finish: Pre-galvanized Ordering: Specify figure number (1950 & 1960 sold

separately), material, finish, and number of feet.

Fig. No.

10ft. (3.05m) 20ft. (6.1m)

1951 1952

1961 1962

Unless otherwise specified, all dimensions on drawings and in charts are in inches and dimensions shown in parentheses are in millimeters.

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TELESCOPING CHANNEL FIG. 1950

3-HOLE CHANNEL FIG. 1960

COMBINATION TELESCOPING CHANNEL FIG. 1950 & 1960

Beam Span

Allowable load

Resulting Deflection

Allowable load @1/240 Span

lbs. kN lbs. kN

12 (304.8) 4203 (18.70) 0.012 (0.305) 4703 (20.92)

24 (609.6) 2099 (9.34) 0.050 (1.270) 2099 (9.34)

36 (914.4) 1396 (6.21) 0.112 (2.845) 1396 (6.21)

48 (1219.2) 1044 (4.64) 0.200 (5.080) 1044 (4.64)

60 (1524.0) 831 (3.70) 0.312 (7.925) 664 (2.95)

72 (1828.8) 689 (3.06) 0.450 (11.430) 456 (2.03)

84 (2133.6) 587 (2.61) 0.612 (15.545) 330 (1.47)

96 (2438.4) 510 (2.27) 0.799 (20.295) 248 (1.10)

108 (2743.2) 450 (2.00) 1.012 (25.705) 190 (0.85)

120 (3048.0) 401 (1.78) 1.249 (31.725) 149 (0.66)

Beam Span

Allowable load

Resulting Deflection

Allowable load @1/240 Span

lbs. kN lbs. kN

12 (304.8) 2225 (9.90) 0.015 (0.381) 2225 (9.90)

24 (609.6) 1610 (7.16) 0.061 (1.549) 1610 (7.16)

36 (914.4) 1071 (4.76) 0.136 (3.454) 1071 (4.76)

48 (1219.2) 800 (3.56) 0.243 (6.172) 658 (2.93)

60 (1524.0) 637 (2.83) 0.379 (9.627) 417 (1.85)

72 (1828.8) 528 (2.35) 0.546 (13.868) 286 (1.27)

84 (2133.6) 449 (2.00) 0.743 (18.872) 206 (0.92)

96 (2438.4) 390 (1.73) 0.970 (24.638) 153 (0.68)

108 (2743.2) 344 (1.53) 1.228 (31.191) 116 (0.52)

120 (3048.0) 306 (1.36) 1.516 (38.506) 90 (0.40)

Beam Span

Allowable load

Resulting Deflection

Allowable load @1/240 Span

lbs. kN lbs. kN

12 (304.8) 7033 (31.28) 0.013 (0.330) 7033 (31.28)

24 (609.6) 3511 (15.62) 0.051 (1.295) 3511 (15.62)

36 (914.4) 2335 (10.39) 0.115 (2.921) 2335 (10.39)

48 (1219.2) 1745 (7.76) 0.205 (5.207) 1705 (7.58)

60 (1524.0) 1389 (6.18) 0.320 (8.128) 1082 (4.81)

72 (1828.8) 1151 (5.12) 0.460 (11.684) 742 (3.30)

84 (2133.6) 980 (4.36) 0.627 (15.926) 536 (2.38)

96 (2438.4) 851 (3.79) 0.819 (20.803) 401 (1.78)

108 (2743.2) 749 (3.33) 1.036 (26.314) 307 (1.37)

120 (3048.0) 668 (2.97) 1.279 (32.487) 239 (1.06)

Loads based on telescoping members of equal length.