3x3x3 Corrugated Mailers - ECT-32 White Crush Resistant, 50-Pack
$16.72
/ bundle of 50$0.33 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
3" × 3" × 3"
Board / material
ECT-32-B Corrugated
Color
White
Freight class
Class 125
Specifications
| Inside dimensions | 3" × 3" × 3" (L × W × H) |
|---|---|
| Board / material | ECT-32-B Corrugated |
| Color | White |
| Sold as | Bundle of 50 |
| Order in multiples of | 50 |
| Bundle weight | 4.1 lb |
| Outer carton (shipping) | 16.0 × 9.75 × 5.75 in |
| LTL freight class | Class 125 |
| GTIN | 812578007851 |
| SKU | M333 |
About this item
SKU M333 — 3" × 3" × 3", ECT-32-B Corrugated, White. Sold as a bundle of 50, shipped from US warehouses.
ECT-32-B white corrugated mailers engineered for small-parcel efficiency. One-piece design folds in seconds, no tape, glue, or staples required. Double-wall crush-resistant construction protects lightweight fragile items while reducing dimensional weight charges.
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 why does it matter for my shipping operation?
ECT (Edge Crush Test) 32-B indicates the corrugated can withstand 32 lbs of crush force per linear inch, ideal for single-item shipments and moderate stacking in mixed carton loads. For volume operations, this rating supports 8, 12 box stacks without collapse, reducing pallet counts and freight spend.
How much assembly labor do I save versus tape-seal mailers?
Fold-and-tuck design eliminates tape cutting, application, and reinforcement steps. Expect 8, 12 seconds per box assembly versus 25, 30 seconds for taped alternatives, equivalent to 50, 60% labor reduction per 1,000 units processed.
Will these mailers stack safely in a full pallet shipment?
Yes. ECT-32-B rating supports stacking up to 10, 12 assembled mailers vertically without compression damage. For maximum density, nest 6, 8 unassembled mailers per row on a standard 4840" pallet, reducing outbound freight cost per unit by 15, 20%.
Are these white mailers suitable for branded or customer-facing use?
Absolutely. Oyster white color provides a clean, professional appearance for unboxing experiences. Flat, smooth surface accepts printing (logos, QR codes, shipping labels) without additional coating or pre-treatment, supporting direct-to-consumer fulfillment and brand consistency.
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.