4x4x2 Kraft Corrugated Mailers ECT-32-B Crush Resistant, 50-Pack
$28.22
/ bundle of 50$0.56 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
4" × 4" × 2"
Board / material
ECT-32-B Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 4" × 4" × 2" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | Kraft |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 4.8 lb |
| Outer carton (shipping) | 14.75 × 12.75 × 5.5 in |
| LTL freight class | Class 125 |
| GTIN | 848109008585 |
| SKU | M442K |
About this item
SKU M442K — 4" × 4" × 2", ECT-32-B Corrugated, Kraft. Sold as a bundle of 50, shipped from US warehouses.
The 4x4x2 Kraft Corrugated Mailers ECT-32-B Crush Resistant, 50-Pack 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 2"; kraft 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
How much does this mailer reduce shipping costs compared to rigid boxes?
Lightweight kraft construction reduces postage by 15-25% per unit compared to heavier rigid boxes. Flat-ship design also cuts inbound freight costs by up to 40% due to reduced dimensional weight.
Will ECT-32-B provide adequate protection for fragile items?
Yes. The double-wall construction on front and sides delivers crush-resistant protection rated for stacking loads up to 200 lbs. Suitable for glassware, small electronics, and light tools. For heavier items, consider ECT-44 or higher ratings.
Can we use these mailers without tape or additional fasteners?
Absolutely. The fold-and-tuck one-piece design closes securely without tape, glue, or staples. This eliminates assembly labor and reduces per-unit packing costs.
How do these stack on pallets for warehouse storage?
Flat-folded boxes stack compactly in your warehouse. Once assembled, the 4 x 4 x 2" footprint maximizes pallet utilization for both storage and outbound shipments, improving fulfillment efficiency by 20-30%.
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.