Plank & Build
Free woodworking tool

Pocket-Hole Screw Guide

Pick your material thickness and wood type to get the right jig and stop-collar setting, the correct screw length, and whether to use a coarse or fine thread. The full chart is below too.

Your joint

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Material

Use this

Recommended setup
1-1/4"
pocket screw length
3/4"
jig & collar setting
Coarse
screw thread
3/8"
drill bit (standard)
3/4"
drill depth

Pocket-hole screw length chart

Set the drill guide and the stop collar on the bit to your material thickness, then pick the screw length below. Use coarse-thread screws in softwood, plywood and MDF, and fine-thread in hardwood so you don't split the grain. Lengths follow the standard Kreg-style chart.

Material thickness Jig & collar setting Screw length
1/2"1/2"1"
5/8"5/8"1"
3/4"3/4"1-1/4"
7/8"7/8"1-1/4"
1"1"1-1/2"
1-1/8"1-1/8"1-1/2"
1-1/4"1-1/4"2"
1-1/2"1-1/2"2-1/2"

Coarse or fine thread?

Coarse grips soft material (softwood, plywood, MDF). Fine is for dense hardwoods like oak, maple and walnut, where coarse threads can split the wood.

How do you set the jig?

Set the drill-guide depth and the bit's stop collar to your material thickness, then drill. The pilot hole bottoms out so the screw lands in the center of the joining board.

Planning a whole build?

Estimate material with the free board foot calculator or price it with the lumber cost calculator.