8x4x4 ECT-32 Kraft Corrugated Mailers 50-Pack M844K
$53.17
/ bundle of 50$1.06 per mailer
Request bulk pricing
Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
8" × 4" × 4"
Board / material
ECT-32-B Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 8" × 4" × 4" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | Kraft |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 11.4 lb |
| Outer carton (shipping) | 21.0 × 16.75 × 6.0 in |
| LTL freight class | Class 125 |
| SKU | M844K |
About this item
SKU M844K — 8" × 4" × 4", ECT-32-B Corrugated, Kraft. Sold as a bundle of 50, shipped from US warehouses.
8x4x4" kraft corrugated mailers in ECT-32 corrugated board, packed 50 per pack (SKU M844K); this is a second listing of the same BOX case stock at the same price.
Sized for shipping and fulfillment work; closes with tape or the built-in flap. Order by the pack of 50.
Common questions
What does ECT-32-B rating mean for my shipping operation?
ECT (Edge Crush Test) 32-B indicates the corrugated kraft can withstand 32 pounds of crushing force per linear inch. This rating ensures adequate protection for small fragile items while maintaining lightweight postage-friendly construction, ideal for tools, glassware, and electronics without unnecessary bulk.
How much labor do I save with one-piece fold-and-tuck design?
Operators can assemble and seal each mailer in 3-5 seconds with no tape, glue, or staples required. For a 1,000-unit monthly volume, this saves 50+ labor hours annually compared to traditional glued-bottom boxes, directly improving your fulfillment cost per unit.
Can these mailers handle stacking during warehouse storage or freight transport?
Yes, ECT-32-B kraft corrugated provides crush resistance for moderate stacking in warehouse and ground freight environments. However, for heavily stacked pallets, verify weight limits based on item contents; we recommend testing your specific product load.
Are these mailers compliant with e-commerce and sustainable shipping requirements?
100% recyclable kraft corrugated construction supports corporate sustainability goals and meets major e-commerce carrier packaging standards. Lightweight design reduces carbon footprint per shipment while minimizing dimensional weight charges on most major carriers.
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.