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

Front width (mm)

Width of the drawer front in millimetres.

Box depth (mm)

Interior depth of the drawer box in millimetres.

Side height (mm)

Height of the side panels in millimetres.

Compute the panel counts and total edge length for one drawer box from front width, box depth, and side 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]

Front count

One front panel per drawer box.

Back count

One back panel per drawer box.

Side count

Two side panels per drawer box.

Bottom count

One bottom panel per drawer box.

Total edge length (mm)

Exposed edge length over front and back plus both sides: two times the sum of front width, side height, and box depth.

• 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.

• Carcase Panel Count Generator

  Count the side, top, bottom, and back panels of a box carcase with a one-thickness back reveal.

• Drawer Bill of Materials Generator

  Generate the bill of materials for a drawer from inner width, depth, and height.

• Drawer Side Length Rule

  Compute the slim drawer side length by subtracting 54 millimeters from the front width.