1. Measure your drawer's inside width.
2. Measure your drawer's inside depth.
Subtract from your measurements obstructions such as handle screw heads and corner brackets. We subtract 1/8" installation clearance from your width and depth. Drawers must be removable to install organizers.
3. Measure your drawer height - to be most effective, should not be as high as your drawer - recommend 2-1/2" height.