Wood Screw Gauge to Inch Chart
Wood screws are sized by gauge number — here is the shank diameter each gauge refers to.
| Gauge | Shank dia (in) | Typical pilot | Typical use |
|---|---|---|---|
| #4 | 0.112 | 3/64 to 1/16 | Hardware, hinges |
| #6 | 0.138 | 3/64 to 1/16 | Light fixtures, trim |
| #8 | 0.164 | 7/64 to 1/8 | General woodworking |
| #10 | 0.190 | 1/8 to 9/64 | Cabinets, framing |
| #12 | 0.216 | 9/64 to 5/32 | Heavy woodworking |
| #14 | 0.242 | 5/32 to 11/64 | Framing, structural |
Higher gauge means a thicker shank. Pilot holes depend on wood hardness — see the pilot hole chart.
Printable PDF
Download the printer-friendly Wood Screw Gauge to Inch Chart as a free PDF — perfect for the shop wall or toolbox.
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