7x4x2 ECT-32-B White Corrugated Mailers 50-Pack M742
$24.12
/ bundle of 50$0.48 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
7" × 4" × 2"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 7" × 4" × 2" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 6.56 lb |
| Outer carton (shipping) | 15.75 × 15.0 × 5.75 in |
| LTL freight class | Class 125 |
| SKU | M742 |
About this item
SKU M742 — 7" × 4" × 2", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
7x4x2" white corrugated mailers in ECT-32-B corrugated board, packed 50 per pack (SKU M742); 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 pack of 50.
Common questions
What does ECT-32-B mean, and how does it affect performance?
ECT-32 refers to Edge Crush Test of 32 pounds per linear inch, a measure of corrugated board strength. The 'B' denotes board grade. This rating ensures reliable crush resistance for typical small-package shipping while keeping material costs competitive. For most B2B fulfillment operations, ECT-32-B handles standard 5-10 lb shipments with confidence.
How much do these mailers weigh compared to rigid boxes?
ECT-32-B corrugated mailers weigh significantly less than equivalent rigid boxes or heavier corrugated grades, directly reducing dimensional weight charges on UPS, FedEx, and USPS Priority Mail. Lower weight = lower postage, making bulk orders highly cost-efficient for high-volume shippers.
Do I need tape or adhesive to close these mailers?
No. The fold-and-tuck design allows mailers to close securely without tape, glue, or staples. This speeds packing operations, eliminates adhesive costs, and reduces material waste, key advantages for high-throughput fulfillment centers.
What items shouldn't I ship in these mailers?
These 7x4x2" mailers work best for lightweight items under 5-10 lbs. Avoid shipping very heavy products, items with sharp edges (unless padded), or oversized goods. For heavier shipments, upgrade to heavier ECT ratings or larger box dimensions to maintain crush resistance and prevent damage claims.
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.