Framing the first of two floors, conventional crawl-space foundation
  Sills, pier blocks, floor beams (145 BF per 1,000 SF) B1@.018 SF .09 .60 .69
  Floor joists, doublers, blocking, bridging (1,480 BF per 1,000 SF) B1@.028 SF .94 .93 1.87
  Subflooring, 5/8" OSB (1,150 SF per 1,000 SF) B1@.011 SF .56 .37 .93
  Layout, studs, sole plates, top plates, header and end joists, backing, blocking, bracing and framing for openings (2,250 BF per 1,000 SF) B1@.093 SF 1.43 3.10 4.53
  Rough stairway, 15 risers and landing (96 BF of dimension lumber and 128 SF of plywood per 1,000 SF) B1@.008 SF .17 .27 .44
  Ceiling joists, header and end joists, backing, blocking and bracing (1,060 BF per 1,000 SF) B1@.045 SF .67 1.50 2.17
Total framing, 1st of 2 floors, crawl-space foundation B1@.203 SF 3.86 6.77 10.63
Add for plywood sheathing — % 8.4 — —
Framing the first of two floors, concrete slab foundation
  Layout, sole plates, anchors, studs, top plates, header and end joists, backing, blocking, bracing and framing for openings (2,250 BF per 1,000 SF) B1@.093 SF 1.43 3.10 4.53
  Rough stairway, 15 risers and landing (96 BF of dimension lumber and 128 SF of plywood per 1,000 SF) B1@.008 SF .67 .27 .94
  Ceiling joists, header and end joists, backing, blocking and bracing (1,060 BF per 1,000 SF) B1@.045 SF .17 1.50 1.67
Total framing, first of two floors, concrete foundation B1@.146 SF 2.27 4.87 7.14
Framing the second story of a residence
  Subflooring, 5/8" OSB (1,150 SF per 1,000 SF) B1@.011 SF .56 .37 .93
  Layout, studs, sole plates, top plates, header and end joists, backing, blocking, bracing and framing for openings (2,250 BF per 1,000 SF) B1@.093 SF 1.43 3.10 4.53
  Ceiling joists, header and end joists, backing, blocking and bracing (1,060 BF per 1,000 SF) B1@.045 SF .67 1.50 2.17
  Rafters, braces, collar beams, ridge boards, 2" x 8" rafters 16" OC (1,340 BF per 1,000 SF) B1@.032 SF .85 1.07 1.92
  Roof sheathing, 7/16" OSB (1,150 SF per 1,000 SF) B1@.010 SF .40 .33 .73
Total framing, second floor of a two-story residence B1@.191 SF 3.91 6.37 10.28
Add for plywood sheathing — % 10.7 — —
Floor Assemblies Costs for wood framed floor joists with subflooring and R-19 insulation. These costs include the floor joists, subflooring as described, blocking, nails and 6-1/4" thick R-1.9 fiberglass insulation between the floor joists. Figures include box or band joists and typical double joists. No beams included. Planked subflooring is based on 1.24 BF per square foot of floor. Costs shown are per square foot of area covered and include normal waste. Deduct for openings over 25 SF.
Using framing lumber at — MBF 635.00 — 635.00
Using 5/8" CDX plywood subfloor at — MSF 768.00 — 768.00
Using 3/4" CDX plywood subfloor at — MSF 656.00 — 656.00
Using 7/16" OSB subfloor at — MSF 345.00 — 345.00
Using 5/8" OSB subfloor at — MSF 487.00 — 487.00
Using 3/4" OSB T&G subfloor at — MSF 558.00 — 558.00

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