These 8 x 8 x 8 inch corrugated boxes are built to W5c specification, combining 250# single wall board with water-resistant adhesive (WRA) throughout. WRA construction reinforces glue joints against moisture penetration, preserving structural integrity in humid storage, refrigerated environments, and variable-weather transit — a level of protection standard corrugated does not provide.

The cubic format suits parts distribution, pharmaceutical fulfillment, food-adjacent packaging, and e-commerce operations where condensation or outdoor handling exposure is a routine concern. Military packaging specification compliance makes these boxes appropriate for procurement programs and contracts requiring documented material standards.

Board construction is W5c - 250# single wall corrugated. Each box weighs approximately 0.328 lbs. Boxes are sold in bundles of 25 and ship via parcel carrier. Meets ASTM D5118.