In stock SKU M843GTIN 812578008391

8x4x3 ECT-32-B White Corrugated Mailers 50/Bundle

$30.85 / bundle of 50$0.62 per mailer
= 50 mailers · Item subtotal $30.85

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 8" × 4" × 3"
Board / material ECT-32-B Corrugated
Color White
Freight class Class 125

Specifications

Inside dimensions8" × 4" × 3" (L × W × H)
Board / materialECT-32-B Corrugated
ColorWhite
Sold asBundle of 50
Physical units per order increment50 (one bundle)
Bundle weight8.64 lb
Outer carton (shipping)17.75 × 16.75 × 5.5 in
LTL freight classClass 125
GTIN812578008391
SKUM843

About this item

SKU M843 — 8" × 4" × 3", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.

The 8x4x3" White Corrugated Mailers ECT-32-B is a corrugated mailer for books, catalogs, apparel, subscription kits, samples, documents, and small e-commerce orders. Listed specs include inside dimensions 8" x 4" x 3"; white material; ECT-32-B; bundle of 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 is ECT-32-B and why does it matter for my operation?
ECT (Edge Crush Test) 32-B indicates the corrugated can withstand 32 lbs of pressure per linear inch, sufficient for most lightweight parcels. This mid-range rating balances durability with cost efficiency, making it ideal for high-volume shippers prioritizing freight savings over maximum protection.
How much does this mailer weigh and will it impact my shipping costs?
At approximately 0.35 oz per mailer, the lightweight construction minimizes dimensional weight penalties. For carriers using DIM divisors of 166-200, this translates to lower billable weight and measurable cost reductions on high-volume accounts.
Can I stack these mailers in my warehouse without crushing them?
Yes. The double-wall construction on front and sides resists crushing during stacking. A bundle of 50 flat mailers occupies minimal floor space, and assembled boxes can stack 4-5 high when empty without deformation, maximizing storage efficiency.
Do I need special equipment or training to assemble these?
No. The fold-and-tuck design requires zero equipment, simply fold, tuck the flaps, and seal if needed. Most warehouse staff assemble these in under 5 seconds per box, reducing labor bottlenecks in fulfillment operations.

Order support

Questions on specs or freight?

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