6x4x1 White Corrugated Mailers ECT-32-B Crush Resistant - 50 Pack
$34.94
/ bundle of 50$0.70 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
6" × 4" × 1"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 6" × 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 | 4.9 lb |
| Outer carton (shipping) | 15.0 × 12.0 × 5.75 in |
| LTL freight class | Class 125 |
| GTIN | 848109007571 |
| SKU | M641 |
About this item
SKU M641 — 6" × 4" × 1", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
The 6x4x1 White Corrugated Mailers ECT-32-B Crush Resistant is a corrugated mailer for books, catalogs, apparel, subscription kits, samples, documents, and small e-commerce orders. Listed specs include inside dimensions 6" 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 corrugated mean, and why does it matter?
ECT (Edge Crush Test) 32 indicates the material withstands 32 pounds of force per linear inch, sufficient for typical parcel handling and light stacking in fulfillment operations. The 'B' denotes a two-ply corrugated structure, balancing durability with cost efficiency for high-volume shippers.
Do these mailers require tape, glue, or staples to close?
No. The patented fold-and-tuck design means your team simply folds and tucks the flaps, assembly takes seconds per box. This eliminates tape waste, reduces labor overhead, and speeds order fulfillment cycles.
Will these mailers stack safely in my warehouse without damage?
Yes. ECT-32-B construction provides reliable crush resistance for stacking in typical warehouse environments. Avoid extreme moisture or prolonged outdoor exposure to maintain structural integrity.
What's the dimensional weight impact on shipping costs?
At just 1" depth, these mailers minimize dimensional weight charges compared to deeper boxes. For light items, you pay postage based on actual weight rather than oversized dimensions, directly reducing per-unit shipping costs at scale.
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.