How Do You Measure Drawer Slides?

Measuring drawer slides correctly ensures a smooth, functional drawer. Here's how to do it:

Measuring for Drawer Slides: A Step-by-Step Guide

Remove the Drawer: For the most accurate measurement, remove the drawer from the cabinet and lay it on a flat surface. This provides easier access and prevents inaccurate readings.
Measure the Drawer's Interior: Using a measuring tape, place one end at the back of the drawer box (the inside back edge) and extend it along the bottom edge to the front of the drawer box (the inside front edge). Do not include the drawer face in your measurement. This measurement represents the inside length of the drawer. (This method is supported by multiple sources, including arthurharris.com).
Round Down: Drawer slides typically come in standard lengths. Always round your measurement down to the nearest whole number. (As recommended by cabinetdoor.store).
Consider Drawer Depth: While the primary measurement is the length, you'll also need to consider the depth of your drawer. You'll need slides that can accommodate the depth of your drawer box.
Choose the Right Type of Slide: There are various types of drawer slides (undermount, side mount, full extension, etc.). The type of slide impacts both the measurement and installation method. Refer to the manufacturer's instructions for specific guidance. (This is highlighted by several sources, including Fast Cabinet Doors).
Verify Measurements: Before purchasing, double-check your measurements to ensure accuracy.

Let's say your drawer's interior length measures 23.7 inches. After rounding down, you'll need 23-inch drawer slides.

Cabinet Depth vs. Drawer Depth: Ensure your chosen slide length also considers the overall depth of the cabinet and the drawer to account for the necessary slide extension and clearance.
Slide Type: Undermount slides require different measurements than side-mount slides. Carefully check the installation instructions for your chosen slide type.
Soft-Close Slides: If using soft-close slides, ensure they are compatible with the size and type of your drawers and cabinet.