Drywall Screw Size Chart: Complete Guide to Types, Lengths & Installation (2026)
Drywall screws look simple but there are four types and getting the wrong one means loose panels, popped fasteners, or screws that spin without gripping. Here is the complete guide.
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Drywall Screw Size Chart
| Drywall Thickness | Screw Length | Type | Spacing (walls) | Spacing (ceilings) |
|---|---|---|---|---|
| 1/4" drywall | 1-1/4" | W-type coarse | 16" | 12" |
| 3/8" drywall | 1-1/4" | W-type coarse | 16" | 12" |
| 1/2" drywall (standard) | 1-5/8" | W-type coarse | 16" | 12" |
| 5/8" drywall (type X) | 1-7/8" to 2" | W-type coarse | 16" | 12" |
| Double layer 1/2" | 2-1/4" to 2-1/2" | W-type coarse | 16" | 12" |
| Drywall to metal stud | 1-1/4" to 1-5/8" | S-type fine | 16" | 12" |
W-Type vs S-Type: The Critical Difference
W-type (coarse thread) — for wood studs. The coarse thread bites aggressively into wood fiber and self-countersinks into the gypsum paper face without tearing it. This is the standard drywall screw for 99% of residential work.
S-type (fine thread / self-drilling) — for metal studs. The sharp drill-point tip penetrates light-gauge steel without a pilot hole. Fine thread grips metal better than coarse thread. Using a W-type in metal studs results in poor holding strength.
How Deep to Drive Drywall Screws
Drive the screw just below the paper surface — creating a slight dimple — without tearing the paper. The paper face is structural. A torn paper face means the screw has no holding power and will pop. Use a drywall dimpler bit or set your drill clutch carefully.
- Too shallow (proud): joint compound won't cover it, visible bump after painting
- Just right (dimple): paper intact, compound fills cleanly
- Too deep (torn paper): screw has minimal holding strength, will pop
Common Mistakes
- Using drywall screws for structural work: Drywall screws are hardened and brittle — they snap under shear load. Never use them for framing, decking, or any structural connection.
- Wrong length: Screw must penetrate at least 5/8" into the stud. For 1/2" drywall that means minimum 1-1/8" screw — 1-5/8" is standard for margin.
- Using W-type in metal studs: Coarse thread strips metal stud immediately. Always use S-type for metal framing.
Recommended Products
Where to Buy Drywall Screws
Canada:
United States:
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Thomas Leroy
Contractor and founder of BuildToolHQ. 15+ years working with concrete, masonry, and structural fastening on residential and commercial job sites across North America. I built this site to give tradespeople and serious DIYers the same technical knowledge professionals use every day.
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