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

Door width (mm)

Required number input.

Door height (mm)

Required number input.

Stile width (mm)

Required number input.

Rail height (mm)

Required number input.

Generate the bill of materials for a frame-and-panel door from outer dimensions, stile width, and rail height. 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]

Stiles

The resulting stiles returned as an integer.

Rails

The resulting rails returned as an integer.

Frame area (m²)

The resulting frame area returned as a number.

Panel area (m²)

The resulting panel area 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.

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