Drywall Calculator

Estimate net board area, whole drywall sheets, waste and optional joint-compound containers for a rectangular room.

Sheets to purchase

Method

Walls = 2 × (length + width) × height
Order area = (walls + optional ceiling − openings) × (1 + waste)
Sheets = ceiling(order area ÷ sheet area)

This estimates material quantity only. Board type, thickness, fire/moisture requirements, layout and fastening must follow the project specification and applicable guidance.