9x5x4 White Corrugated Mailers ECT-32-B Crush Resistant, 50/Bundle
$69.88
/ bundle of 50$1.40 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
9" × 5" × 4"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 9" × 5" × 4" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 14.06 lb |
| Outer carton (shipping) | 23.0 × 20.0 × 5.75 in |
| LTL freight class | Class 125 |
| GTIN | 841436088688 |
| SKU | M954 |
About this item
SKU M954 — 9" × 5" × 4", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
The 9x5x4 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 9" x 5" x 4"; 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 perform under stacking pressure?
ECT (Edge Crush Test) 32-B indicates the board can withstand 32 pounds of crushing force per linear inch. This rating ensures reliable protection during warehouse stacking, pallet storage, and multi-package shipments typical in high-volume operations.
Do these mailers require tape, glue, or staples to assemble and close?
No. The one-piece design folds and tucks in seconds with no adhesives or fasteners needed. This eliminates assembly labor, reduces material costs, and speeds throughput in busy fulfillment centers.
How do 9x5x4 mailers compare to bubble mailers or padded alternatives in terms of cost and freight?
Corrugated mailers are 30-40% lighter than padded alternatives and ship flat, reducing dimensional weight charges on carriers like UPS and FedEx. The rigid ECT-32-B construction provides equivalent crush protection at lower total cost per unit and per shipment.
Are these mailers suitable for e-commerce operations shipping to residential addresses?
Yes. The crush-resistant double-wall design protects contents during last-mile delivery, while the professional white finish presents a branded, polished appearance to end customers, ideal for direct-to-consumer and subscription box programs.
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.