Plywood Calculator
Find how many sheets of plywood you need
Frequently Asked Questions
Divide the total area to cover (with a waste allowance) by the area of one sheet, and round up. A standard 4×8 ft sheet covers 32 sq ft.
10% is typical for straightforward jobs; use 15% or more for layouts with many cut-outs, angles, or diagonal seams.
It depends on thickness and wood density — a 3/4-inch (18mm) 4×8 sheet typically weighs around 60-70 lb, useful for planning how many you can carry or fit in a vehicle.
Plan your cutting layout first so full sheets fall on joists or studs at standard spacing, and try to reuse offcuts to reduce total sheets needed.