Use this workshop calculation to turn measured dimensions and the selected construction convention into a cut, spacing, fit, or material-planning value.

Joint Length Millimeters (mm)

Required number input.

End Offset Millimeters (mm)

Required number input.

Biscuit Count

Required integer input.

Equal center-to-center spacing for a chosen number of biscuits placed between equal end offsets along a joint. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Center Spacing Millimeters (mm)

The resulting center spacing millimeters returned as a number.

• Nominal dimensions, kerf, moisture movement, hardware clearances, wall squareness, and manufacturer instructions can change the required shop dimension. Measure the actual assembly and test critical joints on scrap before cutting finished material.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Complement the calculated dimension with a physical story stick, dry fit, or full-size layout. Follow the hardware, coating, adhesive, or machine manufacturer's limits where they differ from a rule of thumb.

• Dovetail Spacing

  Lay out equal dovetail tails between two end pins and equal interior pins; report tail width and center pitch.

• Shelf Pin Hole Positions

  Generate shelf-pin hole center positions from a first offset, equal hole spacing, and number of holes along one line.

• Einlegeboden Bohrungen Anzahl Pro Hoehe

  Count shelf-pin holes on one vertical row between a first and last usable center, inclusive, at a chosen center spacing.