In stock SKU M554KGTIN 848109008530

5x5x4 Kraft Corrugated Mailers ECT-32-B Crush Resistant, Bundle of 50

Ship small items securely with our 5x5x4 kraft corrugated mailers–manufactured from ECT-32-B material for superior crush resistance and double-wall protection. One-piece fold-and-tuck design assembles in seconds with no tape, glue, or staples required. Bundle of 50 ships flat to maximize warehouse efficiency and reduce storage footprint.
$47.04 / bundle of 50$0.94 per mailer
= 50 mailers · Total $47.04
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" × 5" × 4"
Board / material ECT-32-B Corrugated
Color Kraft
Freight class Class 125

Specifications

Inside dimensions5" × 5" × 4" (L × W × H)
Board / materialECT-32-B Corrugated
ColorKraft
Sold asBundle of 50
Order in multiples of50
Bundle weight10.9 lb
Outer carton (shipping)23.0 × 15.75 × 6.25 in
LTL freight classClass 125
GTIN848109008530
SKUM554K

About this item

SKU M554K — 5" × 5" × 4", ECT-32-B Corrugated, Kraft. Sold as a bundle of 50, shipped from US warehouses.

5x5x4 Kraft Corrugated Mailers ECT-32-B, Bundle of 50. 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 5 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 how does it perform in multi-tier stacking?
ECT (Edge Crush Test) 32-lb rating indicates the corrugated can withstand 32 pounds of crushing force per linear inch of edge. ECT-32-B is suitable for single and dual-layer stacking in typical parcel networks; for heavy stacking in warehouses, confirm weight and height limits with your logistics team.
Do these mailers require tape or adhesive, and how does that save money?
No, the fold-and-tuck design closes securely without tape, glue, or staples. This eliminates material costs (tape/adhesive), labor time (2 - 3 seconds per box vs. 10+ seconds with tape), and reduces SKU complexity in inventory.
How much postage savings do these deliver compared to traditional boxes?
Lightweight kraft reduces dimensional weight surcharges, especially with UPS DIM divisor and FedEx DIM factor calculations. A single mailer typically saves $0.15 - $0.35 per shipment at scale; bundles of 50 across monthly volume yield thousands in annual freight savings.
What products should not be shipped in ECT-32-B mailers?
Avoid heavy items over 15 lbs, liquids, or extremely sharp/pointed objects that may puncture walls. For oversized or high-value fragile goods, upgrade to ECT-44-B or add interior cushioning (foam, bubble). Consult carrier weight/dimension limits for your service tier.

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.

+1 (302) 216-2975 support@packrift.com Mon–Fri, Eastern Corrugated buying guide →