3x3x3 Cube Boxes
Updated August 1, 2026
Prices are live catalog prices.
3x3x3" corrugated cube boxes in stock — exact inside dimensions, grade stamped on every listing, bundle quantities with per-box pricing shown, shipped from 5 US regional warehouses.
| Product | Price (per bundle) | Per box |
|---|---|---|
| 3x3x3 ECT-32 Kraft Corrugated Cube Box - Bundle of 25 | $10.91 / 25 | $0.44 |
| 3x3x3 ECT-32-B Kraft Corrugated Mailers - Crush Resistant, Bundle of 50 | $28.32 / 50 | $0.57 |
| 3x3x3 Corrugated Mailers - ECT-32 White Crush Resistant, 50-Pack | $18.90 / 50 | $0.38 |
| 3x3x3 White Reverse Tuck Folding Cartons - 24pt Fibreboard, Case of 250 | $59.34 / 250 | $0.24 |
Sizing note: dimensions are inside measurements (L x W x H); your item should clear each by about 1/4". Nearby sizes: small · medium · large · size chart.
Frequently asked questions
Are 3x3x3 dimensions inside or outside?
Inside. The usable interior is 3x3x3"; outside runs roughly 1/8–1/4" larger per wall by grade.
Do 3x3x3 boxes ship flat?
Yes — corrugated boxes ship flat in bundles and fold to shape. Bundle counts and per-box pricing are on each product page; freight is quoted live at checkout.