7.5x3.25x1.75 White ECT-32-B Corrugated Mailers - Crush Resistant, 50/Bundle

$22.17
/ bundle of 50$0.44 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
7 1/2" × 3.25" × 1 3/4"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 7 1/2" × 3.25" × 1 3/4" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 5.76 lb |
| Outer carton (shipping) | 14.75 × 12.75 × 5.75 in |
| LTL freight class | Class 125 |
| GTIN | 812578008346 |
| SKU | MIBM250 |
About this item
SKU MIBM250 — 7 1/2" × 3.25" × 1 3/4", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
Common questions
What does ECT-32-B rating mean for my shipping operations?
ECT (Edge Crush Test) 32-lbs indicates the corrugated can resist 32 pounds of crushing force per linear inch. This double-wall construction ensures fragile items survive multi-box stacking during storage and transit, reducing damage claims and customer returns, critical for protecting margin on high-velocity SKUs.
How much assembly labor do I save with the fold-and-tuck design?
One-piece mailers fold together in seconds without tape, glue, or staples. On a 500-unit daily volume, you'll save 2, 3 labor hours per shift compared to traditional tape-sealed boxes, directly reducing fulfillment cost per order by $0.05‚$0.08 per unit.
Will these fit standard pallet configurations for my warehouse?
Yes. The compact 71/2" 31/4" 1" footprint is optimized for e-commerce parcel sorts and regional carrier pallets. Flat bundles of 50 stack efficiently in warehouse racking, and folded mailers compress to maximize pallet cube utilization during shipping.
Can I customize or print branding on these mailers?
Standard white mailers support flexographic and digital printing. Contact our sales team for minimum order quantities on custom print runs, ideal for branded unboxing experiences that increase customer retention without bulk inventory commitments.
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.



