The sizes you see on our site are all INTERIOR dimensions- listed as L x W x H. When measuring, determine the longest side first (L), then the shorter side (W) and then the depth of the box (H). Be sure to round up to the nearest tenth of an inch!
The interior dimensions are used to determine the fit of products that go inside. The exterior dimensions can be used to determine shipping costs. To read our How to Guide, click here. 