Drywall Sheets for a 12×12 Room
A 12×12 room with 8 ft walls and a ceiling is about 528 sq ft — roughly 19 sheets of 4×8 drywall plus 1 bucket of mud. Adjust below; uncheck the ceiling for walls only.
Drywall sheets
19 sheets
Surface area
528 sq ftwalls + ceiling
4×8 sheets
19 sheetsincludes 12% waste for cuts
Mud & tape
1 bucket, 1 roll+ 1 box screws
Sheet cost (est.)
$352~$18.50/sheet (1/2")
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How this is calculated
Mulch volume = bed area × depth. We convert cubic feet to cubic yards for bulk delivery and to 2-cu-ft bags for the bagged option, so you can compare cost both ways.