In stock SKU M663GTIN 841436059534

6x6x3 ECT-32-B White Corrugated Mailers - Crush Resistant, 50-Pack

Reduce shipping costs and eliminate assembly time with these one-piece white corrugated mailers. ECT-32-B construction provides double-wall crush resistance on front and sides–no tape, glue, or staples required. Perfect for high-volume fulfillment centers shipping lightweight items.
$70.99 / bundle of 50$1.42 per mailer
= 50 mailers · Total $70.99
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" × 6" × 3"
Board / material ECT-32-B Corrugated
Color White
Freight class Class 125

Specifications

Inside dimensions6" × 6" × 3" (L × W × H)
Board / materialECT-32-B Corrugated
ColorWhite
Sold asBundle of 50
Order in multiples of50
Bundle weight10.48 lb
Outer carton (shipping)22.0 × 18.75 × 5.5 in
LTL freight classClass 125
GTIN841436059534
SKUM663
M663 dimension diagram showing 6 x 6 x 3 inch mailers.
Inside dimensions shown

About this item

SKU M663 — 6" × 6" × 3", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.

6x6x3 ECT-32-B White Corrugated Mailers, 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 6 x 3 in; material corrugated; sold as 50/Bundle. Confirm SKU, pack count, price, availability, and checkout delivery before ordering.

Frequently bought with

Common questions

What ECT rating is this mailer, and why does it matter?
ECT-32-B (Edge Crush Test 32 lbs/inch) provides reliable stacking strength for single-item shipments and moderate multi-box palletizing. This rating balances durability with lightweight shipping costs, critical for B2B operations managing margin pressure on postage.
How much labor time does the fold-and-tuck design save versus taped boxes?
Operators assemble these mailers in 3-5 seconds with zero materials, compared to 10-15 seconds for taped alternatives. At 500 units/day, this design saves approximately 1.5-2 hours of labor per shift, directly improving fulfillment throughput and reducing packing line bottlenecks.
Can I stack filled mailers on a pallet, and what's the recommended height?
Yes. ECT-32-B construction supports stacking up to 5-6 layers deep (typically 30-40 boxes high) depending on item weight and pallet configuration. Always test with your specific product weight and shipping distance to ensure protection and dimensional stability.
What's the dimensional weight impact of using 663 mailers versus larger alternatives?
A 663 mailer = 108 cubic inches. For every 166 cubic inches charged as 1 lb, this mailer reduces dimensional weight surcharges by 30-50% versus 884 alternatives, compounding significant savings across monthly high-volume shipments.

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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