7x3x3 ECT-32-B White Corrugated Mailers - Crush Resistant, 50/Bundle
$20.84
/ bundle of 50$0.42 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" × 3" × 3"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 7" × 3" × 3" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 6.64 lb |
| Outer carton (shipping) | 16.25 × 13.75 × 6.0 in |
| LTL freight class | Class 125 |
| GTIN | 812578008285 |
| SKU | M733 |
About this item
SKU M733 — 7" × 3" × 3", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
Industrial-strength ECT-32-B corrugated mailers built for e-commerce fulfillment centers and warehouse operations. One-piece fold design assembles in seconds with zero tape, glue, or staples required. Crush-resistant construction delivers double-wall protection on front and sides, ideal for small to medium parcels that demand reliability.
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 is ECT-32-B rating and why does it matter?
ECT (Edge Crush Test) 32-B indicates 32 lbs per inch of edge crush strength with B-flute corrugation. This rating provides reliable protection for lightweight items while maintaining cost efficiency, ideal for e-commerce and fulfillment operations prioritizing volume and speed.
How much assembly labor does the one-piece design save?
One-piece fold-and-tuck construction eliminates taping, gluing, and stapling. Experienced fulfillment teams fold and seal each mailer in 2-3 seconds, reducing labor per unit by up to 40% compared to traditional four-flap boxes.
Are these mailers crush-resistant enough for stacking in transit?
Yes. ECT-32-B corrugation provides double-wall crush resistance on front and sides. These mailers withstand typical sortation and palletizing pressures without compromising contents, making them suitable for multi-tier freight consolidation.
Can I reduce freight costs with these mailers?
Absolutely. The compact 7 x 3 x 3" footprint and lightweight corrugated construction lower dimensional weight charges. Nested shipments maximize carton-per-pallet density, reducing cost-per-unit and your logistics spend at scale.
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.