12 × 16 ft room: the short answer
With an 8 ft ceiling, a 12 × 16 ft room has about 640 sq ft of drywall including the ceiling — roughly 22 sheets of 4×8 at 10% waste, or 16 sheets for walls only.
Room size
Drywall for a 12 × 16 ft room
A 12 × 16 ft room with an 8 ft ceiling has about 640 sq ft of drywall (walls + ceiling) — roughly 22 sheets of 4×8 with 10% waste, or 16 sheets for walls only. Adjust height, openings, sheet size, or waste below.
Sheets needed
—Enter a room size to estimate sheets.
| Drywall area | — |
|---|---|
| Sheets (incl. waste) | — |
| Joint compound | — |
| Joint tape | — |
| Screws (approx.) | — |
| Estimated sheet cost | — |
Estimate only.
Sheets include your waste allowance. Compound, tape, and screws use common coverage
rules (≈1 box of mud per 475 sq ft, ≈400 ft of tape per 1,000 sq ft, ≈32 screws per sheet) —
confirm against product labels and your stud spacing.
Don't forget the finishing
Beyond the sheets you'll need about 2 boxes of joint compound, ~256 ft of tape, and ~704 screws. Subtract big openings in the calculator, and bump the waste allowance for rooms with lots of cuts.
Standard area math at an 8 ft ceiling + common coverage rules. Estimates only.
FAQ
How many sheets of drywall for a 12 × 16 ft room?
With an 8 ft ceiling, a 12 × 16 ft room is about 640 sq ft including the ceiling — roughly 22 sheets of 4×8 at 10% waste. For walls only it's about 16 sheets. Subtract doors and windows in the calculator for a tighter number.
How much joint compound and tape for a 12 × 16 ft room?
For about 640 sq ft, plan on roughly 2 boxes of ready-mix joint compound (4.5 gal) and about 256 ft of joint tape, using common coverage rules. Buy a little extra for the first-coat learning curve.
How many screws for a 12 × 16 ft room?
At about 32 screws per sheet, roughly 704 drywall screws for the 22 sheets. Ceilings and 12-inch screw spacing use more; 16-inch field spacing uses fewer.
Estimate only, based on standard area math at an 8 ft ceiling and common coverage rules. Sheet counts include the 10% waste allowance and are rounded up; finishing figures are starting estimates. Confirm against product labels and your framing before buying.