How to use our calculator

To use this calculator, start by selecting your Cabinet Type (face frame 1/2 overlay is most common) and Door Configuration from the dropdown menus to match your specific layout. Next, measure the physical interior width and height of your cabinet opening using a standard tape measure. Input these raw openings into the app by selecting the whole number in inches, followed by the closest fraction (down to 1/16") from the side-by-side dropdown fields. The calculator instantly processes the data and displays your target Finished Door Size Needed for the Build a Door Configurator. tdm-thedoormaker.com/build-a-door/

Disclaimer

This tool is intended for use with cabinets made with 3/4" materials. For 1/2" cabinet material, reduce the door size by 1/8". For 5/8" cabinet material, reduce the door size by 1/16".