21 3/8 x 15 5/8 x 12 5/8 Corrugated Boxes 20/Bundle

These corrugated boxes are brown in color and are standard test RSC (Regular Slotted Carton). They meet Federal Mil Spec PPP B 636. All sizes come flat, making them easy to store and ship. The dimensions shown are the inside length, width, and height of the boxes.

Using these corrugated boxes is easy. First, unfold the box from its flat - packed state. Make sure to align the corners properly. You can use packing tape to seal the bottom of the box. When packing items, place heavier items at the bottom for stability. Avoid over - stuffing the box as it may cause the box to break during shipping. For storage, keep the boxes in a dry place to prevent the corrugated material from getting wet and losing its strength. If the boxes get dirty, you can use a dry cloth to wipe them clean.