Wood Screw Pilot Hole Chart

This is an easy to read table for drilling pilot holes for wood screws in both softwood and hardwood.

Screw Size | Pilot - Soft Wood | Pilot - Hard Wood| Screw = #0 Soft wood 1/64 Hardwood1/32 Screw = #1 Softwood 1/32 Hardwood 1/32 Screw = #2 Softwood 1/32 Hardwood 3/64 Screw = #3 Softwood3/64 Hardwood1/16 Screw = #4 Softwood 3/64 Hardwood1/16 Screw = #5 Softwood 1/16 Hardwood 5/64 Screw = #6 Softwood 1/16 Hardwood 5/64 Screw = #7 Softwood 1/16 Hardwood 3/32 Screw = #8 Softwood 5/64 Hardwood 3/32 Screw = #9 Softwood 5/64 Hardwood 7/64 Screw = #10 Softwood 3/32 Hardwood 7/64 Screw = #11 Softwood 3/32 Hardwood 1/8 Screw = #12 Softwood 7/64 Hardwood 1/8 Screw = #14 Softwood 7/64 Hardwood 9/64 Screw = #16 Softwood 9/64 Hardwood 5/32 Screw = #18 Softwood 9/64 Hardwood 3/16 Screw = #20 Softwood 11/64 Hardwood 13/64

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