4x4x30 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack 4430
$39.72
/ bundle of 25$1.59 per box
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Secure checkout
| Quantity (bundle) | Item-subtotal discount |
|---|---|
| 1–2 | Base item price |
| 3–5 | 3% off qualifying item subtotal |
| 6+ | 5% off qualifying item subtotal |
| Pallet or repeat orders | Get a delivered quote |
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Shipping & returns details
Ships from U.S. warehouses. 30-day returns on unopened stock items.
Shipping cost and timing depend on the product, quantity and destination. Parcel or freight service is used as appropriate. Shipping discounts apply only to qualifying orders and rates.
Standard delivery is to street addresses in the contiguous U.S. Eligible returns must be unused and in original packaging; return shipping may apply.
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Inside dimensions
4" × 4" × 30"
Board / material
ECT-32 Single Wall Corrugated
Color
Kraft
Freight class
Class 125
From our customers
“The packaging is sturdy, well-made, and looks professional. We’re really pleased with the quality.”
“They helped us choose the right packaging for our products and made ordering easy.”
“Ordering was easy, everything arrived as described, and we’ll definitely order again.”
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Specifications
| Inside dimensions | 4" × 4" × 30" (L × W × H) |
|---|---|
| Board / material | ECT-32 Single Wall Corrugated |
| Color | Kraft |
| Sold as | Bundle of 25 |
| Physical units per order increment | 25 (one bundle) |
| Bundle weight | 11.2 lb |
| Outer carton (shipping) | 34.5 × 8.25 × 8.0 in |
| LTL freight class | Class 125 |
| SKU | 4430 |
About this item
SKU 4430 — 4" × 4" × 30", ECT-32 Single Wall Corrugated, Kraft. Sold as a bundle of 25, shipped from US warehouses.
4x4x30 ECT-32 kraft corrugated shipping boxes 25-Pack. ECT-32 rated corrugated board. Natural kraft finish. Pack of 25 (25-pack). For shipping goods, organizing stockrooms, and packing household items. Shoppers also call these shipping cartons, corrugated cartons, or mailing boxes. Use them to ship e-commerce orders, store stock, or pack for a move.
Compare nearby options
Larger, smaller and stronger options from the same family. Prices shown are current case prices; freight is calculated at checkout.
Common questions
What does ECT-32 mean and why does it matter for stacking?
ECT (Edge Crush Test) 32 indicates the corrugated material can withstand 32 pounds of force per linear inch when compressed edge-down. This rating ensures safe multi-level stacking in warehouses and on pallets, protecting both product integrity and worker safety during fulfillment operations.
Can I use these boxes instead of mailing tubes for long items?
Yes. The 4x4x30" tall profile accommodates items traditionally shipped in tubes while offering protection, easier labeling and barcode placement, and better dimensional weight pricing with most carriers. The square footprint also stacks more efficiently than round tubes.
How many boxes fit on a standard pallet?
When assembled and stacked, approximately 60-80 boxes fit on a 48x40" pallet depending on your stacking height constraints. The narrow 4x4" base maximizes pallet density compared to wider carton formats, directly reducing your per-unit freight cost.
Are these boxes suitable for heavy items or only lightweight merchandise?
ECT-32 single-wall is rated for lightweight to medium-weight items (typically up to 15-20 lbs per box depending on content density and stacking configuration). For heavier tall items, consider ECT-44 double-wall variants. Contact our specialists to verify your specific load requirements.
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Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.