In stock SKU M633KGTIN 848109037585

6x3x3 Kraft Corrugated Mailers ECT-32 Crush Resistant, 50-Pack

Lightweight ECT-32-B kraft corrugated mailers sized 6"x3"x3" with double-wall crush resistance and one-piece fold-and-tuck design. Ships and stores flat to maximize warehouse efficiency and reduce freight costs. Bundle of 50 mailers ready to assemble in seconds–no tape, glue, or staples required.
$28.89 / bundle of 50$0.58 per mailer
= 50 mailers · Total $28.89
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 6" × 3" × 3"
Board / material ECT-32-B Corrugated
Color Kraft
Freight class Class 125

Specifications

Inside dimensions6" × 3" × 3" (L × W × H)
Board / materialECT-32-B Corrugated
ColorKraft
Sold asBundle of 50
Order in multiples of50
Bundle weight6.28 lb
Outer carton (shipping)16.0 × 12.75 × 5.75 in
LTL freight classClass 125
GTIN848109037585
SKUM633K

About this item

SKU M633K — 6" × 3" × 3", ECT-32-B Corrugated, Kraft. Sold as a bundle of 50, shipped from US warehouses.

6x3x3 Kraft Corrugated Mailers ECT-32, 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 6 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 ECT rating means and why ECT-32-B matters for my operation?
ECT (Edge Crush Test) 32-B indicates your mailer withstands 32 lbf/in of crushing force, ideal for small parcels. This rating balances protection for fragile items with lightweight postage efficiency. For heavier items over 5 lbs, consider ECT-44 alternatives.
How much warehouse space and shipping cost can I save versus rigid boxes?
Flat-shipped mailers consume 75-85% less storage space than pre-assembled boxes and weigh 30-40% less, directly reducing dimensional weight charges on parcel carriers like UPS/FedEx. A case of 50 mailers occupies roughly 1 cubic foot versus 8+ cubic feet for rigid equivalents.
Do these mailers require tape, glue, or special equipment to assemble?
No. These one-piece fold-and-tuck mailers require zero assembly materials. Simply fold the flaps together in seconds and seal with a standard packing tape if needed. Assembly takes under 15 seconds per unit, reducing fulfillment labor by 40-50% versus traditional boxes.
Are these mailers suitable for fragile items like glassware or electronics?
Yes. The double-wall construction on front and sides provides crush resistance rated for ECT-32-B. For extremely fragile items, we recommend adding 2-3" of interior cushioning (foam, air pillows, or kraft paper). The 6x3x3" size works perfectly for individually wrapped items.

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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