In stock SKU M553GTIN 812578008018

5x5x3 White Corrugated Mailers ECT-32-B Crush Resistant - 50/Bundle

Lightweight yet crush-resistant 5x5x3 white corrugated mailers engineered for small package fulfillment. ECT-32-B construction delivers double-wall protection on all shipping sides without tape, glue, or staples. Sold in 50-unit bundles for maximum freight efficiency.
$26.77 / bundle of 50$0.54 per mailer
= 50 mailers · Total $26.77
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" × 3"
Board / material ECT-32-B Corrugated
Color White
Freight class Class 125

Specifications

Inside dimensions5" × 5" × 3" (L × W × H)
Board / materialECT-32-B Corrugated
ColorWhite
Sold asBundle of 50
Order in multiples of50
Bundle weight7.6 lb
Outer carton (shipping)20.0 × 15.5 × 5.75 in
LTL freight classClass 125
GTIN812578008018
SKUM553
M553 dimension diagram showing 5 x 5 x 3 inch mailers.
Inside dimensions shown

About this item

SKU M553 — 5" × 5" × 3", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.

5x5x3 White Corrugated Mailers ECT-32-B - 50/Bundle. 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 3 in; material corrugated; sold as Bundle of 50. Confirm SKU, pack count, price, availability, and checkout delivery before ordering.

Frequently bought with

Common questions

What is ECT-32-B and how does it compare to other corrugated grades?
ECT-32 refers to Edge Crush Test rating of 32 lbs/inch, the industry standard for small parcel mailers. ECT-32-B white corrugated provides optimal balance of crush strength, light weight, and cost efficiency for B2B shipping volumes, reducing both product damage and dimensional weight surcharges.
How much labor does the fold-and-tuck design save versus traditional taped boxes?
One-piece design eliminates taping, gluing, and stapling steps. Fulfillment teams report 3-5 seconds per box assembly time, with zero adhesive or fastener materials required. On high-volume operations (10,000+ boxes/month), this translates to measurable labor cost and supply overhead reduction.
Can these mailers handle stacking in a warehouse environment?
Yes. The double-wall front and side protection provides crush resistance suitable for multi-level pallet stacking. ECT-32-B rating supports consistent stack integrity up to industry-standard pallet heights without compression or deformation of shipped contents.
Are these boxes compatible with automated packing equipment?
One-piece fold-and-tuck design is semi-manual friendly. For high-speed automation, verify equipment compatibility with your provider. The compact, consistent 5x5x3" footprint integrates well with standard conveyor systems and dimensional scaling equipment used in modern fulfillment centers.

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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