WoodWorkCalc
Joinery · Workshop tools

Pocket-Hole Setup Geometry

Understand a jig’s drill trajectory and check how thickness and angle affect the entry setback.

Set up your calculation

An illustrative example is loaded. Replace its values with your measurements, costs or documented settings.

15° is an illustrative input. Use your jig’s documented angle.
How this works

Calculation

Your result

Theoretical entry setback from edge
1.4 in
Centerline travel to edge
1.449 in
Screw / collar setting
Use the jig’s thickness chart

The quote handoff carries your inputs and assumptions. Only an explicit base cost is suggested as a quote cost; prices, rates and measurements remain planning notes.

Understand the result

How it works

Drop from the entry face = stock thickness − exit height above the bottom face. Idealized setback = drop ÷ tan(drill angle from the board face). Centerline travel = drop ÷ sin(angle).

  • Use the jig manufacturer’s fixed drill angle, collar setting and screw chart. This centerline sketch does not select a screw or account for the stepped pocket, screw head or receiving board.
  • Actual stock thickness and joint arrangement control the setup. Confirm the screw cannot break through on a test joint.

Learn the method in the Academy

Follow the matching lesson or workshop reference before applying the result.

Use this in your project

Continue with the next measurement or cost, then keep the assumptions with your quote.

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