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Estimate exactly how many drywall sheets, joint compound, and tape you need for a room. Includes a 10% waste factor for cuts and corners.
Step-by-step breakdown of your drywall needs.
Calculate wall surface area plus ceiling area: A = (2LH + 2WH) + LW.
Divide area by sheet square footage and scale up: N = ceil(A / S_size * 1.1).