In stock SKU M833KGTIN 848109047751

8x3x3 ECT-32 Kraft Corrugated Mailers 50-Pack

$42.47 / bundle of 50$0.85 per mailer
= 50 mailers · Item subtotal $42.47

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 8" × 3" × 3"
Board / material ECT-32-B Corrugated
Color Kraft
Freight class Class 125

Specifications

Inside dimensions8" × 3" × 3" (L × W × H)
Board / materialECT-32-B Corrugated
ColorKraft
Sold asBundle of 50
Physical units per order increment50 (one bundle)
Bundle weight7.48 lb
Outer carton (shipping)16.0 × 14.75 × 5.75 in
LTL freight classClass 125
GTIN848109047751
SKUM833K

About this item

SKU M833K — 8" × 3" × 3", ECT-32-B Corrugated, Kraft. Sold as a bundle of 50, shipped from US warehouses.

The 8x3x3" ECT-32-B Kraft 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 8" x 3" x 3"; kraft 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 impact crush resistance?
ECT (Edge Crush Test) 32 indicates the mailer can withstand 32 lbs of force per linear inch. The B-flute corrugated construction creates double walls on the front and sides, ensuring reliable crush protection for fragile items during transit and stacking in the warehouse.
How much time do we save with no-tape assembly?
One-piece fold-and-tuck design eliminates the need for tape, glue, or staples, reducing packing labor by 15-20 seconds per box. For high-volume fulfillment operations, this translates to significant daily labor savings across thousands of shipments.
Can these mailers be stacked safely during storage?
Yes. The ECT-32-B corrugated material provides excellent stacking strength. When shipped flat, the mailers compress efficiently for warehouse storage; when assembled, they maintain structural integrity under normal warehouse stacking conditions.
What's the postage advantage compared to rigid boxes?
The lightweight kraft construction reduces dimensional weight charges with USPS, UPS, and FedEx. The compact 8 x 3 x 3" footprint also minimizes cubic footage, lowering freight costs on LTL and parcel shipments compared to heavier rigid alternatives.

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.