How Many Drywall Screws Per Sheet? — Drywall Screw Calculator
Wondering how many drywall screws per sheet you need? The industry rule of thumb is 32 screws per 4×8 sheet on walls and 36 screws per sheet on ceilings. Enter your sheet count below and this free drywall screw calculator instantly estimates your total screw count — with an optional 10% waste factor and an estimated number of 5 lb boxes to buy.
Enter your numbers
10% covers dropped, bent, and over-driven screws.
Your results
| Screws per sheet | – |
| Sheets | – |
| Base screws (no waste) | – |
| Waste added (10%) | – |
Box count is an estimate: a 5 lb box holds roughly 290 coarse-thread #6 × 1-1/4″ drywall screws. Always round up and check the label on the box you buy.
How to use this calculator
First, count the drywall sheets your project needs — a standard 4×8 sheet is 32 square feet. Type that number into the calculator, then pick whether the sheets go on walls or ceilings. Leave the waste factor at 10% unless you want to adjust it; buying a little extra beats a mid-job trip back to the store.
Hit Calculate (or just keep typing — results update instantly). You'll get your total screw count and an estimate of how many 5 lb boxes to buy. Pair this with our drywall sheet calculator if you still need to figure out the sheet count itself, and the drywall mud calculator for joint compound.
How it works
The math is the industry rule of thumb, stated plainly: walls = 32 screws per 4×8 sheet, ceilings = 36 screws per sheet. With studs 16″ on center, that works out to roughly 5 screws per stud across 4 studs plus extra fasteners along the edges and butt ends — the commonly quoted 32–36 range.
Spacing is what drives those counts: on walls, drive screws about 16″ apart along the studs in the field of the panel and about 12″ apart along edges and ends. On ceilings, use 12″ spacing throughout so the panel stays put against gravity. Total screws = sheets × screws-per-sheet × (1 + waste%). The box estimate divides that total by ~290 screws per 5 lb box (coarse-thread #6 × 1-1/4″) and rounds up. Screw counts are an estimate, not a code prescription — always check your local building code for the fastening schedule it requires.
Frequently asked questions
How many screws go in a 4×8 sheet of drywall?
The standard rule of thumb is 32 screws per 4×8 sheet on walls and 36 screws per sheet on ceilings. Ceilings need more fasteners because gravity works against the panel and building codes require closer screw spacing overhead.
How far apart should drywall screws be spaced?
On walls, space screws about 16 inches apart along the studs in the field of the panel, and about 12 inches apart along the edges and ends. On ceilings, use 12-inch spacing throughout. Keep screws at least 3/8 inch from panel edges and dimple the head just below the paper surface without tearing it.
Do ceilings need more drywall screws than walls?
Yes. Ceilings typically take 36 screws per 4×8 sheet versus 32 on walls. The tighter 12-inch screw spacing keeps the panel from sagging or popping under its own weight, and most inspectors expect it on overhead drywall.
How many drywall screws are in a 5 lb box?
A 5 lb box of coarse-thread #6 × 1-1/4 inch drywall screws contains approximately 290 screws. Counts vary by thread type, length, and manufacturer, so treat this as an estimate and check the label on the box you buy.