6x6x38 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack 6638
$68.98
/ bundle of 25$2.76 per box
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| 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
6" × 6" × 38"
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 | 6" × 6" × 38" (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 | 21.9 lb |
| Outer carton (shipping) | 44.75 × 12.25 × 7.75 in |
| LTL freight class | Class 125 |
| SKU | 6638 |
About this item
SKU 6638 — 6" × 6" × 38", ECT-32 Single Wall Corrugated, Kraft. Sold as a bundle of 25, shipped from US warehouses.
6x6x38 ECT-32 kraft corrugated shipping boxes 25-Pack. ECT-32 board (32 lb per inch edge crush). Natural kraft finish. Use them to ship e-commerce orders, store stock, or pack for a move. Shoppers also call these shipping cartons, corrugated cartons, or mailing boxes. 25-pack: 25 boxes in the bundle.
Nearby exact-spec options
Use these when the size, material, pack quantity, or workflow is close but not identical.
Common questions
What does ECT-32 mean and how does it compare to other corrugated strengths?
ECT (Edge Crush Test) 32 indicates the box can withstand 32 lbs of force per linear inch of edge crush, ideal for moderate-weight items and standard stacking applications. ECT-32 single-wall construction balances cost efficiency with reliable protection, making it the industry standard for mid-range shipping volumes.
Can I use these 6x6x38 boxes instead of mailing tubes for posters and blueprints?
Yes. The 6 x 6 x 38" tall box offers protection compared to standard mailing tubes while providing better stacking performance and freight efficiency. The end-loading design makes insertion simple, and kraft corrugated resists crushing better than tube alternatives.
How many boxes fit on a standard pallet and what's the freight advantage?
Approximately 120 - 150 flat-packed bundles (3,000 - 3,750 individual boxes) fit on a 48x40" pallet, depending on stacking height. Flat packaging reduces dimensional weight by 70 - 80% versus pre-assembled boxes, directly lowering your per-unit freight costs on LTL and parcel shipments.
Are these boxes rated for stacking in a warehouse environment?
Yes. ECT-32 single-wall corrugated is rated for standard warehouse stacking (typically 4 - 6 boxes high when fully loaded). Always verify your specific load weight with our packaging specialists to confirm stack height for your application.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.