How many sheets of drywall do I need?

Calculate total wall + ceiling area, subtract doors (21 sq ft each) and windows (15 sq ft each), divide by sheet size (32 sq ft for 4x8 or 48 sq ft for 4x12), and add 10% for waste. This calculator does all of that for you automatically.

What size drywall sheets should I use?

4x8 is standard and easiest to handle. 4x12 sheets are better for tall walls and reduce seams but are heavier. Use 4x8 for most DIY projects and 4x12 for professional installations or rooms with 9-10 foot ceilings.

How thick should drywall be?

1/2" is standard for walls. 5/8" for ceilings (sag-resistant) and fire-rated walls. 1/4" for curved surfaces. Most residential projects use 1/2" drywall throughout.

How much joint compound do I need?

About 1 gallon per 100 sq ft per coat. You'll need 3 coats (taping, bedding, and finishing), so plan for 3 gallons per 100 sq ft total. This calculator includes joint compound estimates.

How much does drywall cost?

Standard 4x8 sheets cost $10-15 each. 4x12 sheets cost $13-20. Moisture-resistant and fire-rated drywall cost more. Joint compound, tape, and screws add roughly $0.10-0.15 per sq ft.

Can I hang drywall myself?

Yes, walls are DIY-friendly. Ceilings are harder and benefit from a helper or drywall lift. Finishing and taping takes practice — expect your first few seams to need extra coats. Start with a closet or small room to build skill.