Free Drywall Calculator Online
Determine the number of drywall sheets, joint compound, and drywall screws needed for your walls and ceilings.
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Frequently Asked Questions (FAQ)
How do I calculate drywall sheets?
Drywall sheets are calculated by dividing the total wall and ceiling square footage by the square footage of a single sheet (32 sq ft for 4x8, 48 sq ft for 4x12), then adding a 10% waste margin.
Which is better: 4x8 or 4x12 sheets?
4x12 sheets are heavier to hang but result in fewer joints and seams, saving finishing time. 4x8 sheets are easier to handle for DIY projects.
How much joint compound do I need?
As a rule of thumb, you need about 0.14 gallons of ready-mixed joint compound (mud) per sheet of drywall.
How many screws do I need per sheet?
You typically need about 30 to 35 drywall screws per 4x8 sheet (spacing them 12-16 inches apart along studs).
Is client-side planning private?
Yes, all estimates are performed local to your browser.