5x3x3 Corrugated Mailers - ECT-32 White Crush Resistant, 50-Pack
$18.02
/ bundle of 50$0.36 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
5" × 3" × 3"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 5" × 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 | 5.82 lb |
| Outer carton (shipping) | 16.0 × 11.75 × 5.75 in |
| LTL freight class | Class 125 |
| GTIN | 812578007974 |
| SKU | M533 |
About this item
SKU M533 — 5" × 3" × 3", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
The 5x3x3 White Corrugated Mailers ECT-32-B Crush Resistant is a corrugated mailer for books, catalogs, apparel, subscription kits, samples, documents, and small e-commerce orders. Listed specs include inside dimensions 5" x 3" x 3"; white 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 rating mean, and how does it compare to other corrugated options?
ECT-32-B indicates 32 Edge Crush Test strength with B-flute corrugation, ideal for lightweight to mid-weight items under 5 pounds. This rating provides excellent crush resistance during multi-level stacking and automated conveyor systems while maintaining cost efficiency versus heavier ECT ratings.
Do these mailers require tape, adhesive, or staples to seal?
No. The fold-and-tuck one-piece design seals itself without tape, glue, or staples. Items are simply placed inside, and the interlocking flaps provide secure closure, reducing labor time and material costs per shipment.
Can these mailers handle stacking in a warehouse or on a pallet?
Yes. ECT-32-B corrugated is engineered for multi-level stacking and holds its shape under pressure when filled properly. The double-wall construction provides crush resistance for high-density pallet configurations typical in fulfillment operations.
What products are best suited for 5x3x3 mailers?
These mailers excel for small electronics, jewelry, cosmetics, watches, USB drives, cables, samples, and lightweight accessories, any item weighing under 5 pounds that requires crush-resistant, compact protection. The compact footprint also reduces dimensional weight charges on shipping rates.
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.