18x4x4 Shipping Boxes - ECT-32 Kraft Corrugated, 25-Pack
$19.38
/ bundle of 25$0.78 per box
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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
18" × 4" × 4"
Board / material
ECT-32 Single Wall Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 18" × 4" × 4" (L × W × H) |
|---|---|
| Board / material | ECT-32 Single Wall Corrugated |
| Color | Kraft |
| Sold as | Bundle of 25 |
| Order in multiples of | 25 |
| Bundle weight | 7.38 lb |
| Outer carton (shipping) | 22.5 × 8.75 × 8.0 in |
| LTL freight class | Class 125 |
| GTIN | 841436015295 |
| SKU | 1844 |
About this item
SKU 1844 — 18" × 4" × 4", ECT-32 Single Wall Corrugated, Kraft. Sold as a bundle of 25, shipped from US warehouses.
The 18" x 4" x 4" ECT-32 kraft shallow corrugated shipping box is for books, binders, framed prints, catalogs, folded apparel, and other low-profile items. Listed dimensions are 18" x 4" x 4"; board and format details include ECT-32, single wall; sold in a bundle of 25; listed weight 7.38 lb. For fit checks, use the 18" x 4" x 4" inside dimensions for flat goods that need less empty depth than a taller shipping box.
Ideal for shipping apparel, shoes, books, household goods, and everyday ecommerce orders. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.
Ecommerce shipping boxes: Good fit for shipping apparel, shoes, books, household goods, small appliances, warehouse picks, and everyday ecommerce orders. These corrugated boxes help small businesses, ecommerce teams, and warehouse shippers match products to the right box size for everyday fulfillment.
Nearby exact-spec options
Use these when the size, material, pack quantity, or workflow is close but not identical.
Common questions
What does ECT-32 mean and why does it matter?
ECT (Edge Crush Test) 32 means this single-wall corrugated board withstands 32 lbs of force per linear inch before crushing. For mid-weight items, ECT-32 balances protection and cost, ideal for most fulfillment applications without over-specification.
How much weight can these boxes safely stack?
ECT-32 single-wall boxes typically support 3 - 5 boxes stacked when properly loaded. Actual stacking performance depends on product weight and load distribution; consult our stacking charts or contact support for your specific use case.
Will these boxes reduce my freight costs?
Yes. The narrow 4 x 4" footprint maximizes pallet density, reducing dimensional weight charges. Compared to oversized boxes for long items, you'll ship more units per pallet and lower your per-unit freight expense.
Can I order custom printing or sizes?
Standard kraft boxes ship off-the-shelf for fast turnaround. For custom printing, graphics, or non-standard dimensions, contact our B2B sales team for volume quotes and lead times.
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.