Plywood Calculator

Your details

One side of the wall, floor or roof plane you want to cover.
ft
The other side of the same plane. Length x width gives the area to cover.
ft
Extra to cover offcuts, cutting mistakes, and trimming around openings. 10% is typical; use 15% for diagonal layouts or many cut-outs.
%
Used to estimate the weight of each sheet and the whole order at about 600 kg/m3.
What one sheet of the chosen size costs at your supplier.
Currency
Sheets needed11 sheets to buy
11
Area to cover320 sq ft
Total coverage purchased352 sq ft
Leftover coverage32 sq ft
Estimated order weight779 lb total (~70.8 lb/sheet)
Coverage purchased352
Area to cover320

Buy 11 sheets of 4 ft x 8 ft (32 sq ft) plywood for this job.

  • The count is the waste-adjusted area divided by one sheet area, always rounded up to a whole sheet.
  • You will have 32 sq ft of coverage to spare after the area is covered, that cushion absorbs offcuts and trimming.
  • Plan for about 779 lb total (~70.8 lb/sheet), so you know whether the load fits your vehicle or needs delivery.
  • Bigger sheets mean fewer seams but more waste on small or oddly shaped jobs; small panels trim tighter.

Next stepPlan a cutting layout before buying so full sheets fall on joists or studs and offcuts get reused.

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