7 1/8 x 5 x 3 in ECT-32-B White Corrugated Mailers 50-Pack
$33.60
/ bundle of 50$0.67 per mailer
Request bulk pricing
| Quantity (bundle) | Item-subtotal discount |
|---|---|
| 1–2 | Base item price |
| 3–5 | 3% 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
7 1/8" × 5" × 3"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 7 1/8" × 5" × 3" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Physical units per order increment | 50 (one bundle) |
| Bundle weight | 10.14 lb |
| Outer carton (shipping) | 19.75 × 18.0 × 6.0 in |
| LTL freight class | Class 125 |
| GTIN | 812578008339 |
| SKU | MLR3 |
About this item
SKU MLR3 — 7 1/8" × 5" × 3", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
The 7 1/8 x 5 x 3" ECT-32-B White Corrugated Mailers - One-Piece Fold, 50-Pack is a corrugated mailer for books, catalogs, apparel, subscription kits, samples, documents, and small e-commerce orders. Listed specs include inside dimensions 7 1/8" x 5" 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.
Common questions
What does ECT-32-B mean, and how does it compare to other corrugated ratings?
ECT-32-B indicates Edge Crush Test rating of 32 lbs/inch, with B-flute corrugation. This mid-range strength is ideal for small package shipping; it balances crush resistance with weight efficiency. Heavier items may require ECT-40 or higher.
Do these mailers require tape or adhesive to seal?
No. The fold-and-tuck design means boxes assemble and seal in seconds with zero additional materials. This reduces labor time and eliminates supply chain dependencies on tape or glue.
How many mailers fit on a pallet, and what's the freight advantage?
At 7 1/8" x 5" x 3", these mailers stack efficiently; 50-unit bundles nest to optimize cubic utilization. The compact footprint reduces dimensional weight surcharges on LTL and parcel shipments, typically saving 8-12% versus larger boxes.
Are these white mailers suitable for branded shipping, and do they offer branding options?
Yes. Oyster white finish provides a clean, professional appearance for direct-to-consumer shipping. Many businesses use these as-is or add custom printed labels/tape for branding without premium tooling costs.
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.