Steel collar beams Cost per linear foot of collar beam or rafter brace, including screws.
  350S162-33 (3-1/2", 33 mil, 20 gauge) B1@.007 LF .65 .23 .88
  550S162-43 (5-1/2", 43 mil, 18 gauge) B1@.014 LF 1.13 .47 1.60
Steel purlins Purlins or “perling” installed below roof rafters.
  350S162-33 (3-1/2", 33 mil, 20 gauge) B1@.013 LF .86 .43 1.29
  350S162-43 (3-1/2", 43 mil, 18 gauge) B1@.019 LF .65 .63 1.28
Steel dormer studs Per square foot of wall area
  350S162-33 (3-1/2", 33 mil, 20 gauge) B1@.036 SF .83 1.20 2.03
Steel ridgeboard Horizontal support at top of rafter ends. Consists of one C-shaped member nested in same size track. Labor includes layout, assembly and alignment. Figures in parentheses show weight of steel per linear foot of ridgeboard. Includes screws and minimal waste.
5-1/2" steel ridgeboard, 1-5/8" flange
    550S162-33 (20 gauge, 2.23 Lbs./LF) B1@.031 LF 2.19 1.03 3.22
    550S162-43 (18 gauge, 2.90 Lbs./LF) B1@.031 LF 2.84 1.03 3.87
    550S162-54 (16 gauge, 3.63 Lbs./LF) B1@.034 LF 3.56 1.13 4.69
    550S162-68 (14 gauge, 4.54 Lbs./LF) B1@.035 LF 4.45 1.17 5.62
8" steel ridgeboard, 1-5/8" flange
    800S162-33 (20 gauge, 2.82 Lbs./LF) B1@.042 LF 2.76 1.40 4.16
    800S162-43 (18 gauge, 3.67 Lbs./LF) B1@.042 LF 3.60 1.40 5.00
    800S162-54 (16 gauge, 4.59 Lbs./LF) B1@.046 LF 4.50 1.53 6.03
    800S162-68 (14 gauge, 5.75 Lbs./LF) B1@.047 LF 5.64 1.57 7.21
    800S162-97 (12 gauge, 8.13 Lbs./LF) B1@.048 LF 7.97 1.60 9.57
10" steel ridgeboard, 1-5/8" flange
    1000S162-43 (18 gauge, 4.28 Lbs./LF) B1@.052 LF 4.19 1.73 5.92
    1000S162-54 (16 gauge, 5.35 Lbs./LF) B1@.052 LF 5.24 1.73 6.97
    1000S162-68 (14 gauge, 6.72 Lbs./LF) B1@.057 LF 6.59 1.90 8.49
    1000S162-97 (12 gauge, 9.51 Lbs./LF) B1@.058 LF 9.32 1.93 11.25
12" steel ridgeboard, 1-5/8" flange
    1200S162-54 (16 gauge, 6.13 Lbs./LF) B1@.063 LF 6.01 2.10 8.11
    1200S162-68 (14 gauge, 7.69 Lbs./LF) B1@.066 LF 7.54 2.20 9.74
    1200S162-97 (12 gauge, 10.89 Lbs./LF) B1@.069 LF 10.70 2.30 13.00
Steel roof trusses Site-fabricated and set by hand 24" OC for any roof slope from 3 in 12 to 12 in 12 so long as the total truss height does not exceed 12' from bottom chord to highest point on truss. Trusses over 12' high may cost up to 100% more. Costs are per square foot (SF) of horizontal area covered.
Using light-gauge steel framing materials at [view picture] Lb .98 .75
4" C-shaped top and bottom chords, members unpunched
    Up to 38' span B1@.029 SF 4.52 .97 5.49
    40' to 50' span B1@.037 SF 5.64 1.23 6.87
Fink truss “W” (conventional roof truss). 4" C-shaped top and bottom chords
    Up to 38' span B1@.023 SF 3.95 .77 4.72
    40' to 50' span B1@.029 SF 4.66 .97 5.63
6" C-shaped top and bottom chords, members unpunched
    Up to 38' span B1@.027 SF 4.75 .90 5.65
    40' to 50' span B1@.035 SF 5.73 1.17 6.90

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