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
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 | — |
Shopping list
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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.
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.
A 12 × 16 ft room is a large bedroom, media room, or studio: 192 sq ft of floor and, at an 8 ft ceiling, roughly 58 sheets of drywall including the ceiling. This is a multi-day project where sequencing, storage, and finishing time matter as much as the material count.
Break the job into hang, tape, and finish phases and order materials for all three at once so you are not waiting mid-project. The calculator's count includes ceiling and waste; confirm the actual wall height and opening sizes. For a room this size, a drywall lift for the ceiling is a worthwhile rental.
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.
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.
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.
Source links and page assumptions reviewed .
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.