In stock SKU M533KGTIN 841436005289

5x3x3 Kraft Corrugated Mailers ECT-32-B Crush Resistant, 50-Pack

Ship small, fragile items safely with our ECT-32-B kraft corrugated mailers in 5x3x3 size. One-piece fold-and-tuck design requires no tape, glue, or staples–assemble in seconds. Bundle of 50 ships flat to maximize warehouse storage and reduce freight expenses.
$28.22 / bundle of 50$0.56 per mailer
= 50 mailers · Total $28.22
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" × 3" × 3"
Board / material ECT-32-B Corrugated
Color Kraft
Freight class Class 125

Specifications

Inside dimensions5" × 3" × 3" (L × W × H)
Board / materialECT-32-B Corrugated
ColorKraft
Sold asBundle of 50
Order in multiples of50
Bundle weight5.56 lb
Outer carton (shipping)16.0 × 11.75 × 6.0 in
LTL freight classClass 125
GTIN841436005289
SKUM533K

About this item

SKU M533K — 5" × 3" × 3", ECT-32-B Corrugated, Kraft. Sold as a bundle of 50, shipped from US warehouses.

5x3x3 Kraft Corrugated Mailers ECT-32-B, 50-Pack. 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 3 x 3 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 affect shipping performance?
ECT (Edge Crush Test) 32-B indicates the corrugated material withstands 32 pounds of force per linear inch before crushing. This mid-range strength is engineered for small parcel shipping and light-to-medium item protection, balancing durability with cost efficiency and keeping postage rates competitive.
How much assembly labor do these one-piece mailers actually save?
By eliminating tape, glue, and staples, workers assemble each mailer in 2-3 seconds versus 8-12 seconds for traditional boxes. At scale, a fulfillment center processing 500+ orders daily saves 40+ labor hours monthly while reducing material costs.
Can these mailers stack safely during storage and transit?
Yes. The double-wall corrugated construction and crush-resistant design support stacking heights of 4-5 mailers flat-packed, or stable stacking of assembled units during temporary staging before shipment. Always confirm weight distribution for your specific product load.
What's the freight advantage of flat-pack storage?
Flat-packed bundles reduce cubic footage by approximately 85% compared to pre-assembled boxes. This dramatically lowers warehousing costs and allows higher unit volumes per pallet, directly reducing per-box freight expenses and improving inventory turnover.

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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