🧱 Drywall & Mud Calculator

Get the exact material count for drywalling a room.

4x8 Drywall Sheets Required

Sheets

1.25" Drywall Screws Needed: 0 Screws

Joint Compound (Bucket Size): 0 Gallons

Paper/Fibafuse Tape: 0 Feet

* Automatically assumes a 10% waste factor for cutouts (doors, windows, outlets).

📏 Drywall Estimating Standards

Professional drywall estimation relies on square footage coverage with a specific allowance for waste on every 4x8 panel.

      Total Area = ((Perimeter x Height) + Ceiling Area) x 1.10
    

The 32-SqFt Rule: A standard 4x8 drywall sheet covers exactly 32 square feet. For 4x12 sheets, divide by 48 instead.
Mud & Tape: We estimate 1 gallon of joint compound for every 100 square feet of drywall for a 3-coat finish. Tape is estimated at 15 linear feet per sheet.
Screws: Professional installers typicaly use 32 screws per 4x8 sheet (spaced 12" on center on studs).

💡 Expert Tip

Always hang your drywall horizontally. This reduces the total length of seams by up to 25%, making the taping and mudding process much faster and easier to blend.