Drywall Calculators
Calculate how many drywall sheets you need, then the joint compound and tape to finish them.
Calculators
Guides
Which measurement should I take first?
Measure total wall and ceiling square footage separately, since ceilings often need a different sheet orientation and more cuts around fixtures. Standard sheets come in 4x8 and 4x12 sizes — pick the sheet size you plan to buy before running the numbers, since it changes how many sheets and how much waste you'll have.
Once the board is hung, the sheet count (or the same wall and ceiling area) is all the Drywall Mud Calculator needs to estimate joint compound and tape for a Level 4 or Level 5 finish.