7x3x1 ECT-32-B White Corrugated Mailers 50-Pack
$28.86
/ bundle of 50$0.58 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" × 3" × 1"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 7" × 3" × 1" (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 | 3.9 lb |
| Outer carton (shipping) | 13.75 × 10.0 × 5.75 in |
| LTL freight class | Class 125 |
| GTIN | 848109007595 |
| SKU | M731 |
About this item
SKU M731 — 7" × 3" × 1", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
The 7x3x1" ECT-32-B White Corrugated Mailers - Crush Resistant, 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" x 3" x 1"; 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 ECT rating is this mailer, and how does it perform under stacking?
ECT-32-B offers 32 ECT (edge crush test) strength, supporting vertical stacking loads of 22 lbs per box when stored 4-high. This rating suits light-to-medium items; verify your item weight against stacking depth requirements in your warehouse environment.
How much labor time does the fold-and-tuck design save versus tape-and-seal boxes?
Workers fold these mailers in 2, 4 seconds per unit with zero additional supplies. Compared to taping traditional boxes, you eliminate tape waste, labor time, and tool requirements, saving 15, 25 seconds per box in high-volume operations.
Can I order partial bundles, or do I need to buy in 50-unit increments?
Standard purchase unit is 50 mailers per bundle. Contact our sales team for custom order minimums or pallet-quantity pricing if your volume requires different configurations.
Are these mailers USPS, UPS, and FedEx compliant for dimensional weight calculations?
Yes. At 731", these mailers fall within standard carrier guidelines and qualify for lightweight dimensional weight handling, reducing your per-piece shipping costs on economy and ground services.
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.