4x4x1 White Corrugated Mailers, ECT-32-B, 50-Pack | Crush-Resistant
$28.22
/ bundle of 50$0.56 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
4" × 4" × 1"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 4" × 4" × 1" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 3.44 lb |
| Outer carton (shipping) | 13.0 × 11.75 × 5.5 in |
| LTL freight class | Class 125 |
| GTIN | 841436072625 |
| SKU | M441 |
About this item
SKU M441 — 4" × 4" × 1", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
The 4x4x1 White Corrugated Mailers, ECT-32-B, 50-Pack | Crush-Resistant is a corrugated mailer for books, catalogs, apparel, subscription kits, samples, documents, and small e-commerce orders. Listed specs include inside dimensions 4" x 4" x 1"; white material; ECT-32-B; bundle of 50. The mailer format works when the product needs a presentation-style carton or compact shipping box instead of a standard RSC case.
Ideal for shipping apparel, books, mugs, accessories, gifts, and small fragile items. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.
Common questions
What does ECT-32-B mean, and how does it affect durability?
ECT-32-B indicates 32 ECT (Edge Crush Test) rating with B-flute corrugation. This delivers reliable crush resistance for small to mid-weight items while maintaining lightweight characteristics that reduce postage costs. Ideal for items under 2 lbs.
How much time does the fold-and-tuck design save compared to traditional mailers?
One-piece fold-and-tuck construction eliminates tape and assembly steps, reducing prep time by approximately 45-60 seconds per box. At scale, this translates to significant labor savings across high-volume fulfillment operations.
Can these mailers stack efficiently in a warehouse?
Yes. The flat, folded format maximizes storage density and stackability. A bundle of 50 occupies minimal shelf space, enabling better inventory management and reducing your overall warehouse footprint compared to pre-assembled boxes.
Are these mailers suitable for fragile items?
Absolutely. The double-wall construction on front and sides provides crush resistance, protecting fragile items like glass, electronics, and cosmetics. The enclosed design also prevents shifting during transit, reducing damage claims and returns.
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.