
Heavy Duty Boxes
SupplyLand Heavy-Duty Corrugated Boxes — Built for Tough Shipping & Storage
When your products demand extra strength, turn to SupplyLand Heavy-Duty Corrugated Boxes, engineered to go the extra mile. Choose from single-wall boxes rated ECT-44 for robust everyday use, or double-wall boxes rated ECT-48 for heavy loads needing maximum protection.
Why SupplyLand Heavy-Duty Boxes Stand Out
- Superior strength ratings — ECT-44 single wall and ECT-48 double wall provide exceptional crush resistance
- Protection for heavier items — Ideal for industrial parts, machinery components, bulk orders
- Recyclable & eco-conscious — Made from corrugated fiberboard that supports sustainable packaging
- Multiple sizes & styles — Wide range of dimensions to match your product specs
- SupplyLand reliability — Consistent quality and fast delivery backed by our packaging expertise
Ramp up your packaging strength with SupplyLand Heavy-Duty Corrugated Boxes — the dependable choice for rugged shipments and secure storage.
190 items
Discounted Shipping $150+
Free Swag $150+
Active Filters
content loaded
Part #P5601
Strength
48 ECT / 275 LB. Double Wall
Part #P12131
Strength
48 ECT / 275 LB. Double Wall
Part #P12132
Strength
48 ECT / 275 LB. Double Wall
Part #P12133
Strength
48 ECT / 275 LB. Double Wall
Part #P5602
Strength
48 ECT / 275 LB. Double Wall
Part #P1877
Strength
48 ECT / 275 LB. Double Wall
Part #P10126
Strength
48 ECT / 275 LB. Double Wall
Part #P1878
Strength
48 ECT / 275 LB. Double Wall
Part #P12134
Strength
48 ECT / 275 LB. Double Wall
Part #P12135
Strength
48 ECT / 275 LB. Double Wall
Part #P12136
Strength
48 ECT / 275 LB. Double Wall
Part #P5603
Strength
48 ECT / 275 LB. Double Wall
Part #P10120
Strength
48 ECT / 275 LB. Double Wall
Part #P11602
Strength
44 ECT / 275 LB. Single Wall
Part #P5579
Strength
44 ECT / 275 LB. Single Wall
Part #P5604
Strength
48 ECT / 275 LB. Double Wall
Part #P12137
Strength
48 ECT / 275 LB. Double Wall
Part #P10124
Strength
48 ECT / 275 LB. Double Wall
Part #P11443
Strength
48 ECT / 275 LB. Double Wall
Part #P5601
Strength
48 ECT / 275 LB. Double Wall
Part #P12131
Strength
48 ECT / 275 LB. Double Wall
Part #P12132
Strength
48 ECT / 275 LB. Double Wall
Part #P12133
Strength
48 ECT / 275 LB. Double Wall
Part #P5602
Strength
48 ECT / 275 LB. Double Wall
Part #P1877
Strength
48 ECT / 275 LB. Double Wall
Part #P10126
Strength
48 ECT / 275 LB. Double Wall
Part #P1878
Strength
48 ECT / 275 LB. Double Wall
Part #P12134
Strength
48 ECT / 275 LB. Double Wall
Part #P12135
Strength
48 ECT / 275 LB. Double Wall
Part #P12136
Strength
48 ECT / 275 LB. Double Wall
Part #P5603
Strength
48 ECT / 275 LB. Double Wall
Part #P10120
Strength
48 ECT / 275 LB. Double Wall
Part #P11602
Strength
44 ECT / 275 LB. Single Wall
Part #P5579
Strength
44 ECT / 275 LB. Single Wall
Part #P5604
Strength
48 ECT / 275 LB. Double Wall
Part #P12137
Strength
48 ECT / 275 LB. Double Wall
Part #P10124
Strength
48 ECT / 275 LB. Double Wall
Part #P11443
Strength
48 ECT / 275 LB. Double Wall

























