8x4x4 ECT-32-B White Corrugated Mailers - Crush Resistant, Bundle of 50

$30.64
/ bundle of 50$0.61 per mailer
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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
8" × 4" × 4"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 8" × 4" × 4" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 11.42 lb |
| Outer carton (shipping) | 20.75 × 16.75 × 6.0 in |
| LTL freight class | Class 125 |
| GTIN | 812578008407 |
| SKU | M844 |
About this item
SKU M844 — 8" × 4" × 4", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
Common questions
What does ECT-32-B mean and how does it affect performance?
ECT (Edge Crush Test) 32 means the mailer withstands 32 pounds of crushing force per linear inch, ideal for stacking in fulfillment centers. The 'B' denotes double-wall corrugation, providing durability and burst strength for high-volume logistics without premium pricing.
How much time does the fold-and-tuck design save vs. tape-and-assemble boxes?
Operators fold and tuck these mailers in seconds with zero additional materials, reducing pick-and-pack labor by approximately 60% compared to traditional glued cartons. For 1,000-unit orders, this translates to 45+ minutes of labor savings per shift.
Will these mailers stack safely during warehouse storage and transport?
Yes. The ECT-32-B rating ensures safe stacking to 4-5 pallets high in standard warehousing conditions. The double-wall construction resists compression damage from pallet loads, protecting product integrity and reducing damage claims.
Are these mailers suitable for fragile items or heavier lightweight products?
These mailers excel for fragile items under 5 lbs (electronics, cosmetics, small parts, samples). The double-wall front and side protection absorbs shock during transit. For items 5-8 lbs, confirm product weight against mailer load rating before high-volume orders.
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.



