7.5x3.5x3.25 Corrugated Mailers - ECT-32 White Crush Resistant, 50-Pack
$26.20
/ bundle of 50$0.52 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
7 1/2" × 3.5" × 3 1/4"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 7 1/2" × 3.5" × 3 1/4" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 7.82 lb |
| Outer carton (shipping) | 17.75 × 15.25 × 5.75 in |
| LTL freight class | Class 125 |
| GTIN | 812578008353 |
| SKU | MIBM5C |
About this item
SKU MIBM5C — 7 1/2" × 3.5" × 3 1/4", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
The 7.5x3.5x3.25" ECT-32 White 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 7.5" x 3.5" x 3.25"; white material; ECT-32; 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 rating mean and how does it affect my shipping costs?
ECT-32 (Edge Crush Test) indicates the mailer can withstand 32 pounds per inch of edge pressure, providing reliable crush resistance for typical lightweight shipments. The lightweight construction reduces dimensional weight charges compared to heavier corrugated, directly lowering freight costs per unit shipped.
How much assembly time does fold-and-tuck design save vs. traditional mailers?
Operators can assemble these mailers in seconds without tape, glue, or staples, eliminating material costs and reducing manual labor by up to 70% compared to tape-and-glue alternatives. At volume, this translates to significant labor savings across high-throughput fulfillment operations.
Will double-wall protection reduce my product damage claims?
Yes. The double-wall construction on front and sides provides crush resistance and impact absorption during transit and handling. This is especially critical for fragile items, helping reduce damage claims and associated refund/replacement costs.
Can I stack these mailers efficiently on pallets for storage?
The compact 7.5" x 3.5" x 3.25" footprint is optimized for pallet stacking and warehouse density. Flat-shipped bundles allow you to store up to 40 bundles per pallet, maximizing your cubic utilization and reducing inventory footprint costs.
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.