9x6x3 Kraft Corrugated Mailers ECT-32-B Crush Resistant - 50 Pack
$57.11
/ bundle of 50$1.14 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
9" × 6" × 3"
Board / material
ECT-32-B Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 9" × 6" × 3" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | Kraft |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 13.44 lb |
| Outer carton (shipping) | 22.0 × 22.0 × 5.5 in |
| LTL freight class | Class 125 |
| GTIN | 848109008738 |
| SKU | M963K |
About this item
SKU M963K — 9" × 6" × 3", ECT-32-B Corrugated, Kraft. Sold as a bundle of 50, shipped from US warehouses.
The 9x6x3 Kraft 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 9" x 6" 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 rating mean for my shipping operation?
ECT-32-B indicates 32 ECT (Edge Crush Test) kraft corrugated with B-grade fluting, delivering reliable crush resistance for small-to-medium items while maintaining cost efficiency. This rating is ideal for lightweight products under 10 lbs and protects against handling abuse in automated sorting systems.
How much warehouse space can I save using flat-ship mailers?
Flat mailers reduce storage footprint by approximately 80% compared to pre-assembled boxes. A single pallet can hold 5,000+ flat mailers versus 500-800 assembled mailers, translating to lower square-footage costs and faster order fulfillment turnaround.
Can my team assemble these mailers without tools or supplies?
Yes. These one-piece fold-and-tuck mailers require zero tape, glue, staples, or equipment, workers simply fold and tuck in seconds. This reduces assembly labor costs and eliminates supply chain dependency on adhesives or fastening materials.
Are these mailers suitable for fragile items and international shipping?
Absolutely. The double-wall crush-resistant construction protects fragile goods like glassware and electronics during handling and transit. The kraft finish is internationally compliant and suitable for both domestic and cross-border shipping, with the lightweight design reducing dimensional weight charges on parcel and LTL carriers.
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.