In stock SKU M531GTIN 848109007519

5x3x1 White ECT-32-B Corrugated Mailers - Crush Resistant, 50-Pack

Ship lightweight items with confidence using these one-piece white corrugated mailers manufactured from durable ECT-32-B material. The 5x3x1 fold-and-tuck design provides double-wall protection on front and sides with zero assembly time–no tape, glue, or staples required. Bulk 50-pack reduces per-unit cost and shipping waste.
$22.85 / bundle of 50$0.46 per mailer
= 50 mailers · Total $22.85
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" × 1"
Board / material ECT-32-B Corrugated
Color White
Freight class Class 125

Specifications

Inside dimensions5" × 3" × 1" (L × W × H)
Board / materialECT-32-B Corrugated
ColorWhite
Sold asBundle of 50
Order in multiples of50
Bundle weight3.28 lb
Outer carton (shipping)12.0 × 10.0 × 5.5 in
LTL freight classClass 125
GTIN848109007519
SKUM531

About this item

SKU M531 — 5" × 3" × 1", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.

5x3x1 White ECT-32-B 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 5 x 3 x 1 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 ECT rating does this mailer have and why does it matter?
This mailer features ECT-32-B corrugated, meaning it can withstand 32 lbs of burst strength per linear inch. For small-parcel shipping, this provides crush resistance during sorting, conveyor handling, and stacking, protecting product integrity without the material cost of higher ECT grades.
How much assembly labor does this one-piece mailer save?
The fold-and-tuck design assembles in seconds with zero tape, glue, or staples. A single operator can prep 300+ units per hour, reducing per-unit labor costs by 60-70% compared to traditional box assembly.
Will this mailer affect dimensional weight pricing?
The compact 5x3x1" footprint is specifically designed to minimize dimensional weight charges with major carriers (UPS, FedEx, USPS). For lightweight items, this dimension typically avoids DIM surcharges and reduces per-shipment postage by 15-25%.
Is this mailer suitable for fragile items?
Yes. The double-wall corrugated construction on front and sides provides crush-resistant protection for fragile lightweight items like jewelry, cosmetics, and small electronics. For heavier or more delicate items, consider adding interior cushioning or upgrading to higher ECT ratings.

Order support

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