6x6x40 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack
$69.83
/ bundle of 25$2.79 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
6" × 6" × 40"
Board / material
ECT-32 Single Wall Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 6" × 6" × 40" (L × W × H) |
|---|---|
| Board / material | ECT-32 Single Wall Corrugated |
| Color | Kraft |
| Sold as | Bundle of 25 |
| Order in multiples of | 25 |
| Bundle weight | 21.66 lb |
| Outer carton (shipping) | 46.5 × 12.0 × 9.0 in |
| LTL freight class | Class 125 |
| GTIN | 841436048194 |
| SKU | 6640 |
About this item
SKU 6640 — 6" × 6" × 40", ECT-32 Single Wall Corrugated, Kraft. Sold as a bundle of 25, shipped from US warehouses.
The 6x6x40 ECT-32 Kraft Corrugated Boxes is a flat corrugated shipping carton for framed mirrors, wall art, signs, glass panels, and shallow framed displays. Listed specs include inside dimensions 6" x 6" x 40"; kraft material; ECT-32; 25 Bundle. 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 ECT rating does this box have and why does it matter?
ECT-32 (Edge Crush Test) indicates this single-wall corrugated can withstand 32 lbs of crushing force per linear inch. For B2B shipping, this rating ensures reliable stacking performance in warehouse environments and during multi-box pallet shipments, protecting your products while maintaining cost efficiency.
Can I use this box instead of a mailing tube?
Yes. The 6x6x40" dimensions and ECT-32 strength make it an excellent alternative to mailing tubes for shipping rods, tubes, and tall items. You'll gain stackability, lower per-unit costs, and easier bulk handling compared to cylindrical tubes.
How much freight space does this save compared to standard boxes?
The tall, narrow profile (6x6 base) minimizes pallet footprint and dimensional weight charges. One pallet holds more boxes per layer vertically, reducing overall shipment cubic footage and lowering freight-in costs for high-volume shippers.
Is this box suitable for heavy stacking?
ECT-32 single-wall corrugated is designed for moderate stacking in typical warehouse conditions. For maximum crush resistance in high-stacking scenarios (6+ layers), consider ECT-44 or double-wall alternatives. Always verify load weight and stack height with your specific product weight.
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.