Sheathing (cont.) Includes nails and normal waste
Roofs, C-D Exterior plywood, machine nailed
  3/8" C8@.009 SF .44 .42 .86
  1/2" C8@.009 SF .66 .42 1.08
  5/8" C8@.009 SF .57 .42 .99
  3/4" C8@.011 SF .69 .51 1.20
Roofs, OSB, machine nailed
  11/32" or 3/8" x 4' x 8' C8@.009 SF .25 .42 .67
  7/16" x 4' x 8' C8@.009 SF .36 .42 .78
  7/16" x 4' x 9' C8@.009 SF .55 .42 .97
  7/16" x 4' x 10' C8@.009 SF .53 .42 .95
  15/32" 4' x 8' C8@.009 SF .44 .42 .86
  1/2" x 4' x 8' C8@.009 SF .37 .42 .79
  5/8" x 4' x 8' C8@.010 SF .51 .46 .97
  5/8" x 4' x 8', tongue and groove C8@.010 SF .67 .46 1.13
  23/32" x 4' x 8' C8@.010 SF .80 .46 1.26
  3/4" x 4' x 8', tongue and groove C8@.011 SF .85 .51 1.36
  Blocking for panel joints, 2" x 4" C8@.010 LF .44 .46 .90
Lumber floor sheathing
  Diagonal, 1" x 6" Standard and Better 1.14 BF per SF C8@.018 SF 2.14 .83 2.97
  Straight 2" x 6" Commercial Grade T&G fir 2.28 BF per SF C8@.032 SF 1.41 1.48 2.89
  Straight 2" x 6" Commercial Grade T&G cedar 2.28 BF per SF C8@.032 SF 5.68 1.48 7.16
  Timber deck, Southern Pine, 5/4" x 6", Premium Grade 1.25 BF per SF C8@.012 SF 3.83 .55 4.38
Lumber wall sheathing, diagonal, 1" x 6" Standard and Better, 1.14 BF per SF C8@.024 SF 2.59 1.11 3.70
Lumber roof sheathing, diagonal, 1" x 6" Standard and Better, 1.14 BF per SF C8@.018 SF 2.59 .83 3.42
Panelized Wood Roof Systems The costs shown will apply on 20,000 to 30,000 SF jobs where roof panels are fabricated near the point of installation and moved into place with a forklift. Costs will be higher on smaller jobs and jobs with poor access. 4' x 8' and 4' x 10' roof panels are made of plywood or OSB nailed to 2" x 4" or 2" x 6" stiffeners spaced 24" on centers and running the long dimension of the panel. Based on fabricated panels lifted by forklift (with metal hangers attached) and nailed to 4" x 12" or 4" x 14" roof purlins spaced 8' on center. Equipment cost is for a 4-ton forklift (40' lift), a truck with hand tools, a gas powered air compressor with air hoses and two pneumatic-operated nailing guns. Costs are per 1,000 square feet (MSF) of roof surface and do not include roof supports except as noted.
Craft@Hrs Unit Material Labor Equipment Total
For scheduling purposes, estimate that a crew of 5 can fabricate 6,000 to 6,400 SF of 4' x 8' or 4' x 10' panels in an 8-hour day. Estimate that the same crew of 5 can install and nail down 7,600 to 8,000 SF of panels in an 8-hour day. Based on the following material costs:
  2" x 4" stiffeners — MBF 605.00 — — 605.00
  2" x 6" stiffeners — MBF 617.00 — — 617.00
  Purlins — MBF 829.00 — — 829.00
  1/2" CDX plywood — MSF 631.00 — — 631.00
  1/2" OSB sheathing — MSF 470.00 — — 470.00

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