8x3x3 Corrugated Mailers - ECT-32 Kraft Crush Resistant, 50-Pack
$37.56
/ bundle of 50$0.75 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
8" × 3" × 3"
Board / material
ECT-32-B Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 8" × 3" × 3" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | Kraft |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 7.48 lb |
| Outer carton (shipping) | 16.0 × 14.75 × 5.75 in |
| LTL freight class | Class 125 |
| GTIN | 848109047751 |
| SKU | M833K |
About this item
SKU M833K — 8" × 3" × 3", ECT-32-B Corrugated, Kraft. Sold as a bundle of 50, shipped from US warehouses.
The 8x3x3" ECT-32-B Kraft Corrugated Mailers - Crush Resistant is a corrugated mailer for books, catalogs, apparel, subscription kits, samples, documents, and small e-commerce orders. Listed specs include inside dimensions 8" x 3" x 3"; 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
What does ECT-32-B mean, and how does it impact crush resistance?
ECT (Edge Crush Test) 32 indicates the mailer can withstand 32 lbs of force per linear inch. The B-flute corrugated construction creates double walls on the front and sides, ensuring reliable crush protection for fragile items during transit and stacking in the warehouse.
How much time do we save with no-tape assembly?
One-piece fold-and-tuck design eliminates the need for tape, glue, or staples, reducing packing labor by 15-20 seconds per box. For high-volume fulfillment operations, this translates to significant daily labor savings across thousands of shipments.
Can these mailers be stacked safely during storage?
Yes. The ECT-32-B corrugated material provides excellent stacking strength. When shipped flat, the mailers compress efficiently for warehouse storage; when assembled, they maintain structural integrity under normal warehouse stacking conditions.
What's the postage advantage compared to rigid boxes?
The lightweight kraft construction reduces dimensional weight charges with USPS, UPS, and FedEx. The compact 8 x 3 x 3" footprint also minimizes cubic footage, lowering freight costs on LTL and parcel shipments compared to heavier rigid alternatives.
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.