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

Clear opening width (mm)

Required number input.

Clear opening height (mm)

Required number input.

Usable cabinet depth (mm)

Required number input.

Slide clearance per side (mm)

Required number input.

Total vertical clearance (mm)

Required number input.

Back clearance (mm)

Required number input.

Calculate outside drawer-box width, height, and depth from clear cabinet opening and chosen slide, vertical, and back clearances. 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]

Outside box width (mm)

The resulting outside box width returned as a number.

Outside box height (mm)

The resulting outside box height returned as a number.

Outside box depth (mm)

The resulting outside box depth 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.

• Drawer Box Panel List Generator

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

• Auszugsschienen Laenge

  Longest drawer-slide length that fits a measured cabinet interior depth after reserving a specified rear clearance; choose an available product size no longer than this result.

• Drawer Front Overlay

  Find equal side overlay of a centered drawer front from front width and clear opening width.