4x4x24 ECT-32 Kraft Corrugated Boxes - 25 Pack Bundle
$29.62
/ bundle of 25$1.18 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
4" × 4" × 24"
Board / material
ECT-32 Single Wall Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 4" × 4" × 24" (L × W × H) |
|---|---|
| Board / material | ECT-32 Single Wall Corrugated |
| Color | Kraft |
| Sold as | Bundle of 25 |
| Order in multiples of | 25 |
| Bundle weight | 8.48 lb |
| Outer carton (shipping) | 28.5 × 8.25 × 7.0 in |
| LTL freight class | Class 125 |
| GTIN | 812578002382 |
| SKU | 4424 |
About this item
SKU 4424 — 4" × 4" × 24", ECT-32 Single Wall Corrugated, Kraft. Sold as a bundle of 25, shipped from US warehouses.
Common questions
What is ECT-32 and why does it matter for tall boxes?
ECT (Edge Crush Test) 32 measures the corrugated material's top-to-bottom stacking strength at 32 pounds per inch of width. For 4-inch-wide boxes, this delivers approximately 128 pounds of static stacking load capacity, sufficient for 3-4 layers of packed tall items in warehouse racks without collapse risk.
Can these boxes replace mailing tubes for fragile items?
Yes. The 4 x 4 x 24" format provides protection versus tubes because corrugated sidewalls absorb impact across the entire surface. Items remain centered and protected during transit, with room for cushioning materials (foam, kraft paper) around the product.
How does the end-load design improve fulfillment speed?
End-loading allows workers to insert items vertically without rotating the box or manipulating multiple flaps. This single-motion packing reduces labor time per unit by 20-30% compared to standard top-load boxes, directly improving warehouse throughput and reducing per-unit labor cost.
What is the freight cost advantage versus oversized boxes?
Dimensional weight is calculated as length x width x height / 166 (DIM factor). A 4 x 4 x 24" box = 0.58 DIM lbs vs. a 6 x 6 x 20" box = 1.09 DIM lbs. Using tall slim boxes reduces freight spend by 47% per box, translating to 10-15% annual savings on high-volume tall-item shipments.
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Questions on specs or freight?
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