40x12x12 ECT-48 Double Wall Corrugated Boxes - Heavy Duty Shipping, Bundle of 10
$110.47
/ bundle of 10$11.05 per box
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Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
40" × 12" × 12"
Board / material
ECT-48 Double Wall Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 40" × 12" × 12" (L × W × H) |
|---|---|
| Board / material | ECT-48 Double Wall Corrugated |
| Color | Kraft |
| Sold as | Bundle of 10 |
| Order in multiples of | 10 |
| Bundle weight | 29.74 lb |
| Outer carton (shipping) | 52.5 × 25.25 × 5.75 in |
| LTL freight class | Class 125 |
| GTIN | 848109053967 |
| SKU | HD401212DW |
About this item
SKU HD401212DW — 40" × 12" × 12", ECT-48 Double Wall Corrugated, Kraft. Sold as a bundle of 10, shipped from US warehouses.
The 40x12x12 ECT-48 Double Wall Corrugated Boxes is a corrugated shipping box for e-commerce orders, parts, samples, retail goods, returns, and warehouse shipments. Listed specs include inside dimensions 40" x 12" x 12"; corrugated material; ECT-48, double-wall; bundle of 10. Use it as a shipping carton, mailing box, storage box, or e-commerce shipper when the item fits the listed dimensions.
Ideal for shipping posters, rods, artwork, banners, lighting, and rolled goods. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.
Long shipping boxes: Good fit for shipping posters, rods, artwork, banners, lighting parts, and other long items. These corrugated boxes help small businesses, ecommerce teams, and warehouse shippers match products to the right box size for everyday fulfillment.
Common questions
What does ECT-48 rating mean for my warehouse operations?
ECT (Edge Crush Test) 48 lbs/inch means each box withstands 48 pounds of crushing force per linear inch of flap. For 40" dimension, this translates to 1,920 lbs total crush strength, ideal for 4 - 5 tier stacking in warehouse racks without dimensional collapse or product damage.
How much freight cost can I save with flat-shipped inventory?
Flat-shipped boxes reduce inbound cube by 85 - 90% versus pre-assembled cartons. A pallet of 50 bundles (500 boxes flat) occupies 12 cubic feet; assembled, that same quantity requires 85+ cubic feet, translating to 40 - 60% LTL freight savings per order.
Are these boxes compatible with automated packing lines?
Yes. Double wall construction and pre-scored flaps integrate directly with pneumatic case erectors and semi-automatic packing equipment running 20 - 50+ boxes per minute. ECT-48 rigidity prevents jams and deformation in high-speed operations.
What's the difference between double wall and single wall for my use case?
Double wall delivers 2 - 3x greater crush strength, puncture resistance, and stacking capacity than single wall. For heavy industrial goods, multi-tier storage, or long-distance shipping, double wall (ECT-48) reduces damage claims and warehouse rework by 35 - 50%, offsetting modest price premium.
Order support
Questions on specs or freight?
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