In stock SKU M943GTIN 812578008438

9x4x3 ECT-32-B White Corrugated Mailers - Crush Resistant, 50-Pack

Ship small items with confidence using these ECT-32-B white corrugated mailers in 9x4x3 dimensions. One-piece fold-and-tuck design eliminates tape, glue, and staples while delivering double-wall crush resistance on front and sides. Bundle of 50 reduces per-unit costs and keeps inventory stocked.
$29.66 / bundle of 50$0.59 per mailer
= 50 mailers · Total $29.66
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 9" × 4" × 3"
Board / material ECT-32-B Corrugated
Color White
Freight class Class 125

Specifications

Inside dimensions9" × 4" × 3" (L × W × H)
Board / materialECT-32-B Corrugated
ColorWhite
Sold asBundle of 50
Order in multiples of50
Bundle weight9.9 lb
Outer carton (shipping)18.0 × 17.75 × 5.75 in
LTL freight classClass 125
GTIN812578008438
SKUM943

About this item

SKU M943 — 9" × 4" × 3", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.

9x4x3 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 9 x 4 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 makes ECT-32-B corrugated better than lower-grade alternatives?
ECT-32-B delivers 32 ECT (Edge Crush Test) strength, ideal for mid-weight parcels under 10 lbs. This rating balances protection and cost, reducing damage claims while keeping per-box spend competitive. Lower ECT grades crush easier under pallet stacking; higher grades add unnecessary weight and cost.
How much assembly labor do fold-and-tuck mailers save versus tape-and-seal boxes?
One-piece mailers eliminate taping steps entirely, your team assembles each box in 3, 5 seconds versus 15, 20 seconds with traditional boxes. For 1,000+ daily shipments, this translates to 3, 5 hours of labor savings per shift, plus zero tape waste.
Will 9 x 4 x 3" mailers fit my typical small parcel dimensional weight calculations?
Yes. This size class (108 cubic inches) remains under many carrier dim-weight thresholds, keeping your postage in the standard small parcel range. Confirm your carrier's specific DIM rules, but these dimensions are designed to maximize content space while minimizing dimensional surcharges.
Can these mailers handle heavier fragile items like glass or ceramics?
ECT-32-B provides solid crush resistance for items under 5 lbs. For heavier fragile goods, consider upgrading to ECT-44-B or adding internal void-fill like crinkle paper or air cushions. The double-wall construction on front and sides adds inherent protection for moderate-weight breakables.

Order support

Questions on specs or freight?

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