Our Stock Boxes are considered an RSC in the packaging business. This means "Regular Slotted Container" & is the most common box style. When folded, its flaps meet in the middle. 2" packaging tape is what we use to hold the flaps shut.

If you are planning to put something very heavy in our boxes, please contact us & let us know so we can be sure the boxes you plan to purchase will not fail. 32 ECT corrugated is rated for 200 lbs/C.