In stock SKU M974GTIN 841436088848

9x7x4 ECT-32-B White Corrugated Mailers - Crush Resistant, 50-Pack

Heavy-duty ECT-32-B white corrugated mailers designed for small parcel shipping. These one-piece folding mailers feature crush-resistant double walls, require no tape or glue, and ship 50 per bundle to maximize freight efficiency and reduce per-unit costs.
$67.86 / bundle of 50$1.36 per mailer
= 50 mailers · Total $67.86
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" × 7" × 4"
Board / material ECT-32-B Corrugated
Color White
Freight class Class 125

Specifications

Inside dimensions9" × 7" × 4" (L × W × H)
Board / materialECT-32-B Corrugated
ColorWhite
Sold asBundle of 50
Order in multiples of50
Bundle weight18.38 lb
Outer carton (shipping)27.0 × 24.0 × 5.5 in
LTL freight classClass 125
GTIN841436088848
SKUM974

About this item

SKU M974 — 9" × 7" × 4", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.

9x7x4 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 7 x 4 in; material corrugated; sold as 50 per bundle. Confirm SKU, pack count, price, availability, and checkout delivery before ordering.

Frequently bought with

Common questions

What is ECT-32-B and why does it matter for my shipping costs?
ECT (Edge Crush Test) 32-B means this corrugated withstands 32 psi of compressive force, sufficient for standard small parcel shipping. The 'B' grade reduces weight by ~15% versus heavier ECT-40, lowering your per-unit shipping expense on USPS Priority and UPS Ground by $0.08‚$0.12 per box.
Do these mailers require tape or assembly tools?
No. The fold-and-tuck die-cut design closes securely without tape, glue, or staples. Workers assemble each mailer in under 3 seconds, cutting labor overhead significantly compared to traditional seal-top boxes.
What size items fit in a 974" mailer?
Optimal for items up to 2 lbs: t-shirts, hoodies, small electronics, books, cosmetics, and lightweight fragile goods. The 4" depth accommodates folded apparel and single-layer product stacks without compression damage.
Are these mailers stackable in my warehouse, and what's the stacking load limit?
Yes. Empty mailers stack 8, 12 bundles high (400, 600 units per stack) on standard 4048" pallets. When filled with product, test actual stack height with your items; typical 1, 2 lb shipments stack 6, 8 boxes without crush risk on standard shelving.

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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