9x7x4 ECT-32-B White Corrugated Mailers - Crush Resistant, 50-Pack
$76.71
/ bundle of 50$1.53 per mailer
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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 dimensions | 9" × 7" × 4" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 18.38 lb |
| Outer carton (shipping) | 27.0 × 24.0 × 5.5 in |
| LTL freight class | Class 125 |
| GTIN | 841436088848 |
| SKU | M974 |
About this item
SKU M974 — 9" × 7" × 4", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
The 9x7x4 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 9" x 7" x 4"; white material; ECT-32-B; 50 per bundle. 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 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.