Steel framing rule of thumb cost breakdown Costs per square foot of living area. These figures were used to compile the framing cost for a medium cost home in the section immediately above.
Using light-gauge steel framing materials at [view picture] — Lb .98 — .98
Using 1/2" OSB subfloor at — MSF 470.00 — 470.00
Using 7/16" OSB roof sheathing at — MSF 345.00 — 345.00
Using 5/8" CDX plywood subfloor at — MSF 539.00 — 539.00
Using 1/2" CDX plywood roof sheathing at — MSF 631.00 — 631.00
  Sills, pier blocks, floor beams (270 Lb per 1,000 SF of floor) B1@.020 SF .26 .67 .93
  Floor joists, doublers, blocking, bridging (2,200 Lb per 1,000 SF of floor) B1@.031 SF 2.16 1.03 3.19
  Subflooring, 1/2" OSB sheathing (1,150 SF per 1,000 SF) B1@.011 SF .54 .37 .91
  Subfloor, 5/8" CDX plywood (1,150 SF per 1,000 SF of floor) B1@.012 SF .62 .40 1.02
  Layout, studs, top and bottom track, headers, backing, blocking, bracing and framing for openings (2,230 Lb per 1,000 SF of floor) B1@.102 SF 2.19 3.40 5.59
  Ceiling joists, header and end joists, backing, blocking and bracing (1,810 Lb per 1,000 SF of floor) B1@.050 SF 1.77 1.67 3.44
  Rafters, braces, collar beams, ridge members, 8" rafters, 24" OC (2,300 Lb per 1000 SF of roof) B1@.042 SF 2.25 1.40 3.65
  Roof sheathing, 1/2" CDX plywood (1,150 SF per 1,000 SF of roof) B1@.011 SF .73 .37 1.10
  Roof sheathing, 7/16" OSB sheathing (1,150 SF per 1,000 SF) B1@.010 SF .40 .33 .73
Steel lally columns Residential basement columns, 3-1/2" diameter, steel tube
  Material only — LF 12.10 — 12.10
  Add for base or cap plate — Ea 4.95 — 4.95
  Add for installation, per column to 12' high B1@.458 Ea — 15.30 15.30
Wood sill plates for steel framing (At foundation) SYP #2 pressure treated lumber, drilled and installed with foundation bolts at 48" OC, no bolts, nuts or washers included. See also wood plates in this section. Figures in parentheses indicate board feet per LF of foundation, including 5% waste and wolmanized treatment.
  2" x 3" sill plates, per MBF — MBF 820.00 — 820.00
  2" x 4" sill plates, per MBF — MBF 1,040.00 — 1,040.00
  2" x 6" sill plates, per MBF — MBF 857.00 — 857.00
  2" x 8" sill plates, per MBF — MBF 897.00 — 897.00
  2" x 3" (.53 BF per LF) B1@.020 LF .45 .67 1.12
  2" x 4" (.70 BF per LF) B1@.023 LF .76 .77 1.53
  2" x 6" (1.05 BF per LF) B1@.024 LF .94 .80 1.74
  2" x 8" (1.40 BF per LF) B1@.031 LF 1.26 1.03 2.29

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