Plywood Sheet Count Calculator

Sheets = surface area / 32 ft² (standard 4×8 sheet) + waste.

Inputs

Result

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How to use this calculator

  • Enter total surface to sheath.
  • Pick sheet size.
  • Read sheet count.

About this calculator

Standard plywood: 4×8 = 32 ft². Common thicknesses: ½" (subfloor), ¾" (subfloor and structural), ⅝" (often as roof deck). For roof and floor sheathing, allow 10% waste; less for clean rectangles.

Frequently asked

OSB vs plywood?+
OSB cheaper, similar performance. Plywood resists moisture better. Most modern construction uses OSB for sheathing.
Thickness for roofing?+
⅝" is typical for residential 24" rafter spacing. 5/8" if 16" spacing in heavy snow areas.
Tongue-and-groove?+
For floors, T&G eliminates seam alignment issues. Costs ~10% more; nearly always worth it.
Sheets per square foot?+
4×8 sheet covers 32 ft² — call it ~31 LF, or ~30 SF working with cuts and seam alignment.
Pressure-treated plywood?+
For ground-contact applications. ~50% more expensive. Use only where required (sill plates, exterior decks).

Related calculators

Drywall Sheet Calculator
Sheets needed = wall area / sheet area (32 ft² for 4×8, 48 ft² for 4×12).
Lumber Board Feet Calculator
Board-feet = (thickness in × width in × length ft) / 12 × pieces.
Lumber Linear Feet Cost Calculator
Total = pieces × length × $/LF.
Roofing Square Count Calculator
1 roofing square = 100 ft². Bundles = squares × 3 (for 3-tab) or × 4 (architectural).
Framing Stud Count Calculator
Studs needed = wall length / spacing + corners + 10% waste.
Shingle Bundle Count Calculator
Bundles = roof area / coverage per bundle (33⅓ ft² for 3-tab).

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Drywall Sheet Calculator
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Sheets needed = wall area / sheet area (32 ft² for 4×8, 48 ft² for 4×12).

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Studs needed = wall length / spacing + corners + 10% waste.

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Bundles = roof area / coverage per bundle (33⅓ ft² for 3-tab).

Roofing Square Count Calculator
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1 roofing square = 100 ft². Bundles = squares × 3 (for 3-tab) or × 4 (architectural).

Lumber Board Feet Calculator
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Board-feet = (thickness in × width in × length ft) / 12 × pieces.

Inventory Count Sheet
PDF

Generate a printable inventory count sheet PDF — items down the left, count / par / order columns, signature line.