Plywood Sheathing Calculator
Estimate 4×8 plywood or OSB sheets for any surface.
A 4×8 sheet of plywood or OSB covers 32 ft². Divide the total area by 32, then add waste for cuts: 10% for straight surfaces or 15% for surfaces with hips and valleys.
4×8 sheets
18
32 ft² each
Fasteners
900
~50 per sheet
Area covered
500
ft²
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How does the plywood sheathing calculator work?
A 4×8 sheet of plywood or OSB covers 32 ft². Divide total area by 32 and add waste for cuts (10% straight, 15% with hips/valleys).
What else do people ask about this calculator?
How many 4×8 sheets in 1000 sq ft?
1000 ÷ 32 = 31.25, so 32 sheets, plus ~10% waste = 35 sheets.
How many nails per plywood sheet?
About 50 for wall or roof sheathing (6 in on edges, 12 in in field). Subfloor uses ~60 with construction adhesive.
Which related calculators should I use next?
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Get Ready for Installation
Complete your plywood sheathing project with reliable fastening and cutting tools.
Metabo HPT Framing Nailer
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