20 x 18 x 4 Corrugated Boxes 25/Bundle

These boxes are made of standard test RSC brown corrugated material, meeting Federal Mil Spec PPP B 636. They're great for storage and shipping as they come flat. The sizes mentioned are the inside dimensions, in the order of length, width, and height.

These corrugated boxes are super easy to use. First, unfold the flat - packed boxes. Then, simply fold along the creases to form the box shape. You can use them for storing all kinds of items at home or in the office, like clothes, books, or documents. When shipping, make sure to securely close the box with tape. For long - term storage, keep them in a dry place to prevent the corrugated material from getting wet and weakening. If the boxes get dirty, you can gently wipe them with a dry cloth.