21 3/8 x 15 5/8 x 9 1/2 Corrugated Boxes 20/Bundle

These boxes are standard test RSC (Regular Slotted Carton) brown corrugated and meet Federal Mil Spec PPP B 636. They ship flat, making storage and shipping a breeze. The sizes listed are the inside dimensions - length, width, and height.

These corrugated boxes are great for storing and shipping your items. To use them, simply unfold the flat - packed box and assemble it according to the folds. You can put all kinds of things inside, like clothes, books, or small household items. When it comes to storage, keep them in a dry place to prevent the corrugated material from getting wet and damaged. For shipping, make sure to seal the box well with strong packing tape. If you're not using the boxes right away, you can keep them flat to save space. Just remember not to stack too many heavy items on top of the filled boxes to avoid crushing.