In stock SKU M663KGTIN 841436080927

6x6x3 Kraft Corrugated Mailers ECT-32-B - Crush-Resistant, Bundle of 50

Ship small items with confidence using these ECT-32-B kraft corrugated mailers. One-piece construction folds in seconds–no tape, glue, or staples required. Ships flat to maximize warehouse space and reduce freight costs per unit.
$57.11 / bundle of 50$1.14 per mailer
= 50 mailers · Total $57.11
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 Kraft
Freight class Class 125

Specifications

Inside dimensions6" × 6" × 3" (L × W × H)
Board / materialECT-32-B Corrugated
ColorKraft
Sold asBundle of 50
Order in multiples of50
Bundle weight10.42 lb
Outer carton (shipping)22.25 × 19.0 × 6.0 in
LTL freight classClass 125
GTIN841436080927
SKUM663K

About this item

SKU M663K — 6" × 6" × 3", ECT-32-B Corrugated, Kraft. Sold as a bundle of 50, shipped from US warehouses.

6x6x3 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 6 x 6 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

How much postage do I save compared to traditional corrugated boxes?
ECT-32-B kraft mailers are significantly lighter than rigid boxes of equivalent protection, reducing dimensional weight surcharges on most carriers. The 663" size is optimized for USPS Priority Mail, UPS, and FedEx ground pricing tiers, delivering 15 - 25% freight savings on typical small-parcel shipments.
Do these mailers require assembly or additional materials?
No. One-piece folding design means your team simply folds and close, no tape, glue, staples, or adhesive tape required. This accelerates packing speeds and eliminates supply chain dependencies on tape inventory.
What ECT rating means for my application?
ECT-32-B (Edge Crush Test 32 lbs/in) provides crush-resistant performance suitable for moderately fragile items and stacked palletized storage. This rating ensures boxes maintain structural integrity under typical warehouse conditions and standard ground shipping vibration.
Can I stack these mailers in storage without compromising box integrity?
Yes. The double-wall construction and ECT-32-B rating support safe stacking in warehouse environments. However, avoid stacking heights exceeding 48 inches and store in climate-controlled areas to maintain corrugated strength and dimensional stability.

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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