In stock SKU M933GTIN 812578008421

9x3x3 ECT-32-B White One-Piece Corrugated Mailers 50-Pack

$27.88 / bundle of 50$0.56 per mailer
= 50 mailers · Item subtotal $27.88

Before shipping and tax. Final discounts and total are confirmed in the cart.

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Volume pricing — applied automatically in the cart
Quantity (bundle)Item-subtotal discount
1–2Base item price
3–53% off qualifying item subtotal
6+5% off qualifying item subtotal

In stock · ships within 1 business day from the nearest of 5 US warehouses (IL, PA, TX, GA, CA) · 1–5 business days in transit · freight calculated at checkout · free ground shipping on orders over $99 (parcel rates up to $29.95) and over $500 (up to $120)

30-day returns on stock items · Return policy

Inside dimensions 9" × 3" × 3"
Board / material ECT-32-B Corrugated
Color White
Freight class Class 125

Specifications

Inside dimensions9" × 3" × 3" (L × W × H)
Board / materialECT-32-B Corrugated
ColorWhite
Sold asBundle of 50
Physical units per order increment50 (one bundle)
Bundle weight8.22 lb
Outer carton (shipping)16.0 × 15.75 × 5.75 in
LTL freight classClass 125
GTIN812578008421
SKUM933

About this item

SKU M933 — 9" × 3" × 3", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.

The 9x3x3" White Corrugated Mailers ECT-32-B, 50-Pack - One-Piece Fold Design is a corrugated mailer for books, catalogs, apparel, subscription kits, samples, documents, and small e-commerce orders. Listed specs include inside dimensions 9" x 3" x 3"; white material; ECT-32-B; Bundle 50. The mailer format works when the product needs a presentation-style carton or compact shipping box instead of a standard RSC case.

Ideal for shipping apparel, books, mugs, accessories, gifts, and small fragile items. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.

Common questions

What does ECT-32-B mean, and how does it compare to thinner corrugated?
ECT-32-B indicates 32-pound edge crush test rating with B-flute corrugation, the standard for mid-weight protective shipping. This rating supports stacking heights of 48-60" in typical warehouse conditions, outperforming 200# and 225# kraft in crush resistance while maintaining lighter weight for postage savings.
Do these mailers require tape, glue, or staples?
No. The one-piece fold-and-tuck design features pre-scored creases and locking flaps that secure without adhesives. This reduces labor time per box by 60-70% compared to traditional FEFCO designs and eliminates supply chain dependencies on tape inventory.
What is the maximum stacking load for these 9x3x3 mailers on a pallet?
ECT-32-B supports 4-5 pallets high in a 48-high warehouse environment under static load (full boxes). For dynamic conditions and freight vehicles, stack to 3 pallets high maximum. Conduct load testing with your specific product weight to confirm capacity.
How many 9x3x3 mailers fit on a standard 48x40" pallet?
A single bundle (50 mailers) ships flat and occupies approximately 1-1.5 cubic feet. Estimate 60-80 bundles per pallet depending on secondary packaging. This density supports 3,000-4,000 individual mailers per pallet, significantly reducing per-unit freight cost at volume.

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