5x4x4 ECT-32-B White One-Piece Corrugated Mailers 50/Bundle M544
$35.21
/ bundle of 50$0.70 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
5" × 4" × 4"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 5" × 4" × 4" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 8.38 lb |
| Outer carton (shipping) | 20.75 × 13.75 × 5.75 in |
| LTL freight class | Class 125 |
| SKU | M544 |
About this item
SKU M544 — 5" × 4" × 4", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
5x4x4" white corrugated mailers in ECT-32-B corrugated board, packed 50 per bundle (SKU M544); this is a second listing of the same BOX case stock at the same price.
Sized for shipping and fulfillment work; closes with tape or the built-in flap. Order by the bundle of 50.
Common questions
What is ECT-32-B and why does it matter for my shipping operation?
ECT (Edge Crush Test) 32-B means these mailers withstand 32 lbs per inch of edge crush force. This rating ensures your packages stay protected during handling, conveyor processing, and stacking in warehouses, reducing damage claims and returns.
How much labor time do I save with one-piece fold-and-tuck design?
Operators can assemble and seal these mailers in 3-5 seconds without tape, glue, or staples. For a 500-box daily volume, you'll save approximately 30-40 minutes per shift compared to traditional taped boxes.
Will these mailers fit my small item inventory?
Yes. The 5 x 4 x 4" interior dimension is optimized for items under 5 lbs, including electronics, cosmetics, jewelry, clothing, and books. Double-wall construction protects fragile contents without excessive dimensional weight charges.
How do these mailers reduce my shipping costs?
Lightweight corrugated construction lowers DIM weight charges on UPS, FedEx, and USPS. Bundled pricing at 50 units per pack also reduces per-unit cost by 15-25% versus case quantities, directly improving your margin on small-parcel shipments.
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.