6x6x4 White Corrugated Mailers, ECT-32-B, 50-Pack Bundle
$47.72
/ bundle of 50$0.95 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
6" × 6" × 4"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 6" × 6" × 4" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 12.36 lb |
| Outer carton (shipping) | 25.25 × 18.75 × 6.0 in |
| LTL freight class | Class 125 |
| GTIN | 841436059541 |
| SKU | M664 |
About this item
SKU M664 — 6" × 6" × 4", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
The 6x6x4 White Corrugated Mailers, ECT-32-B, 50-Pack Bundle is a corrugated mailer for books, catalogs, apparel, subscription kits, samples, documents, and small e-commerce orders. Listed specs include inside dimensions 6" x 6" x 4"; 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 mean, and how does it compare to other ratings?
ECT (Edge Crush Test) 32 means the corrugated withstands 32 lbs of crushing force per linear inch of edge. This double-wall construction is ideal for lightweight to mid-weight items (under 5 lbs); it balances protection with cost efficiency better than ECT-44 for small packages, while exceeding ECT-26 for fragile goods.
Can I use these without tape, glue, or staples?
Yes. The one-piece fold-and-tuck design features pre-scored flaps that lock securely without adhesives. Simply fold the bottom flaps together and the top flaps overlap to seal, no tools or consumables required, reducing labor time and material expenses per box.
How does the 664" size affect DIM weight pricing?
At 144 cubic inches (664/166), this size sits at the optimal threshold for most carriers' dimensional weight calculations, minimizing surcharges for lightweight items while providing ample protection. Compared to larger mailers, you save 15, 25% on postage per shipment.
What's the minimum order quantity, and do bulk discounts apply?
This product is sold in bundles of 50 mailers per unit. Volume pricing typically applies at case quantities (500+, 1000+, 2500+). Contact our B2B sales team for tiered pricing and custom pallet configurations to maximize your savings.
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.