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

Panel thickness (mm)

Panel thickness the cleat supports in millimeters.

Compute the cleat width as twice the panel thickness with a 30 mm minimum. 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]

Cleat width (mm)

Recommended cleat width in millimeters.

• 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.

• Kanten Anleimer Ueberstand 1mm Fraesen

  Edge-banding width needed for a panel thickness with 1 mm trimming overhang on both faces.

• Dado Width

  Allow a dado to fit a measured panel thickness with explicit total width clearance.

• Ceiling Panel Expansion Gap Rule

  Recommend the tongue-and-groove ceiling panel expansion gap as 8 mm from 4 m field length and 5 mm below.