In stock SKU M666GTIN 841436072656

6x6x6 ECT-32-B White Corrugated Mailers 50/Bundle

$72.92 / bundle of 50$1.46 per mailer
= 50 mailers · Item subtotal $72.92

Before shipping and tax. Final discounts and total are confirmed in the cart.

Request bulk pricing
Volume pricing — applied automatically in the cart
Quantity (bundle)Item-subtotal discount
1–2Base item price
3–53% off qualifying item subtotal
6+5% off qualifying item subtotal

In stock · ships within 1 business day from the nearest of 5 US warehouses (IL, PA, TX, GA, CA) · 1–5 business days in transit · freight calculated at checkout · free ground shipping on orders over $99 (parcel rates up to $29.95) and over $500 (up to $120)

30-day returns on stock items · Return policy

Inside dimensions 6" × 6" × 6"
Board / material ECT-32-B Corrugated
Color White
Freight class Class 125

Specifications

Inside dimensions6" × 6" × 6" (L × W × H)
Board / materialECT-32-B Corrugated
ColorWhite
Sold asBundle of 50
Physical units per order increment50 (one bundle)
Bundle weight16.54 lb
Outer carton (shipping)30.75 × 19.0 × 6.0 in
LTL freight classClass 125
GTIN841436072656
SKUM666
M666 dimension diagram showing 6 x 6 x 6 inch mailers.
Inside dimensions shown

About this item

SKU M666 — 6" × 6" × 6", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.

The 6x6x6 ECT-32-B 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 6" x 6" x 6"; 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 is the ECT rating and why does it matter?
ECT-32-B means the corrugated material withstands 32 lbs of edge crush test pressure per linear inch. This rating ensures your mailers protect fragile items during multi-carrier handling and stacking, reducing damage claims and customer returns.
How much labor time do fold-and-tuck mailers save versus traditional boxes?
One-piece fold-and-tuck design eliminates taping, gluing, or stapling steps. Typical savings range from 30-40% assembly time per unit, translating to significant labor cost reduction in high-volume fulfillment centers.
Are these mailers suitable for fragile items?
Yes. The double-wall corrugated construction on front and sides provides crush resistance for delicate products. However, for extremely fragile items, adding internal padding or bubble wrap is recommended.
What are the dimensional weight advantages of 666 sizing?
The cubic 666" footprint minimizes volumetric weight charges across USPS, UPS, and FedEx while maximizing internal space for small items. This reduces per-unit shipping costs by 15-25% compared to oversized boxes.

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.