8x5x3 ECT-32-B Kraft Corrugated Mailers 50-Pack M853K
$42.47
/ bundle of 50$0.85 per mailer
Secure checkout
Try a free sample first
Check the fit and feel before buying in bulk.
| Quantity (bundle) | Item-subtotal discount |
|---|---|
| 1–2 | Base item price |
| 3–5 | 3% off qualifying item subtotal |
| 6+ | 5% off qualifying item subtotal |
Shipping & deliveryCheck cost to your ZIP code
Shipping & returns details
Ships from U.S. warehouses. 30-day returns on unopened stock items.
Shipping cost and timing depend on the product, quantity and destination. Parcel or freight service is used as appropriate. Shipping discounts apply only to qualifying orders and rates.
Standard delivery is to street addresses in the contiguous U.S. Eligible returns must be unused and in original packaging; return shipping may apply.
Need a hand? Talk to our team
Inside dimensions
8" × 5" × 3"
Board / material
ECT-32-B Corrugated
Color
Kraft
Freight class
Class 125
From our customers
“The packaging is sturdy, well-made, and looks professional. We’re really pleased with the quality.”
“They helped us choose the right packaging for our products and made ordering easy.”
“Ordering was easy, everything arrived as described, and we’ll definitely order again.”
Questions before you order?Talk to us
Specifications
| Inside dimensions | 8" × 5" × 3" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | Kraft |
| Sold as | Bundle of 50 |
| Physical units per order increment | 50 (one bundle) |
| Bundle weight | 10.42 lb |
| Outer carton (shipping) | 20.0 × 19.0 × 6.0 in |
| LTL freight class | Class 125 |
| SKU | M853K |
About this item
SKU M853K — 8" × 5" × 3", ECT-32-B Corrugated, Kraft. Sold as a bundle of 50, shipped from US warehouses.
8x5x3 ECT-32-B kraft corrugated mailers 50-Pack. Sold as a 50-pack (50 mailers per pack). Protects documents, media, and soft goods without a separate shipping box. ECT-32 board (32 lb per inch edge crush). Natural kraft finish. Shoppers also call these corrugated box mailers, literature mailers, or e-commerce mailer boxes. Kraft, not white: the white option is listed separately.
Common questions
What does ECT-32-B rating mean for my shipping operation?
ECT-32-B indicates 32-pound edge crush test strength with B-flute corrugation, ideal for small, lightweight packages. This rating provides excellent crush resistance for fragile items without excess weight that increases postage costs.
How quickly can staff assemble these mailers during peak fulfillment?
One-piece fold-and-tuck design requires only 2-3 seconds per mailer with zero tools or adhesives needed. A single operator can prepare 1,200+ units per hour, significantly reducing labor time versus traditional boxes requiring tape and assembly.
What's the freight and storage advantage of flat-ship design?
Flat storage reduces your inbound receiving footprint by approximately 85-90% versus pre-assembled mailers. When multiplied across bulk orders, this translates to lower freight-in costs, reduced warehouse racks needed, and faster inventory turnover.
Are these mailers suitable for e-commerce returns and two-way shipping?
Yes, ECT-32-B kraft construction withstands repeat handling, making these ideal for subscription boxes, returns processing, and multi-leg shipping scenarios. The double-wall design on critical surfaces protects contents through multiple carrier transitions.
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.