In stock SKU M544KGTIN 848109047669

5x4x4" ECT-32-B Kraft Corrugated Mailers - Crush Resistant, 50/Bundle

ECT-32-B kraft corrugated mailers engineered for maximum crush resistance in a compact 5x4x4" size. One-piece fold-and-tuck design requires no tape, glue, or staples–assembly takes seconds. Ships and stores flat in bundles of 50 to maximize warehouse efficiency and reduce freight costs.
$39.64 / bundle of 50$0.79 per mailer
= 50 mailers · Total $39.64
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 Kraft
Freight class Class 125

Specifications

Inside dimensions5" × 4" × 4" (L × W × H)
Board / materialECT-32-B Corrugated
ColorKraft
Sold asBundle of 50
Order in multiples of50
Bundle weight8.2 lb
Outer carton (shipping)21.0 × 13.75 × 5.75 in
LTL freight classClass 125
GTIN848109047669
SKUM544K

About this item

SKU M544K — 5" × 4" × 4", ECT-32-B Corrugated, Kraft. Sold as a bundle of 50, shipped from US warehouses.

5x4x4" ECT-32-B Kraft Corrugated Mailers, 50/Bundle. Use this item for shipments or presentation packs where the product fits the listed inside dimensions and closure style. Listed specs include size 5 x 4 x 4 in; material kraft; sold as Bundle of 50. Confirm SKU, pack count, price, availability, and checkout delivery before ordering.

Frequently bought with

Common questions

What does ECT-32-B mean, and why does it matter for my shipments?
ECT (Edge Crush Test) 32-B indicates the corrugated board can withstand 32 lbs of force per linear inch before crushing. This rating ensures reliable protection for fragile items during stacking and handling in transit and warehouse environments.
How much postage can I save compared to rigid boxes?
Kraft corrugated mailers weigh significantly less than traditional rigid shipping boxes, reducing dimensional and actual weight charges. Flat-shipped construction also lowers inbound freight costs and eliminates pre-assembly labor, improving bottom-line shipping efficiency.
Do these mailers require tape, glue, or assembly equipment?
No. The one-piece fold-and-tuck design allows mailers to assemble in seconds by hand, no tape, glue, staples, or equipment needed. This reduces packing labor and eliminates supply chain dependencies on adhesives.
Can I stack these mailers in my warehouse to maximize storage?
Yes. Because they ship and store flat, you can stack 50-unit bundles efficiently on shelving, significantly reducing cubic footage requirements compared to pre-assembled boxes and lowering warehouse overhead costs.

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.

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