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Dado and Rabbet Dimension Calculator

Calculate a fitted groove width and remaining stock from user-selected part thickness, clearance, and cut depth.

Prefilled values are examples. Replace them with measurements and current costs for your project.

Inputs

Fitted part and clearance

Range: at least 0.01 in

Use the measured thickness of the panel or part that will fit the cut.

Range: at least 0 in

Enter the total width added across both sides. Zero means a nominally exact-width cut; no clearance is prescribed.

Stock and cut depth

Range: at least 0.01 in

Range: at least 0 in

Result

Remaining stock thickness below cut
0.5000 in
Target dado or rabbet width
0.7600 in
Positive backing remains below the cut.

Formula

Target dado or rabbet width
—
Remaining stock thickness below cut
—

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Results are planning aids based on the inputs and assumptions shown. Verify dimensions, stock sizes, hardware clearances, kerf, and current prices against your project before cutting or quoting.