4x4x3 ECT-32 Kraft Corrugated Shipping Boxes
$13.66
/ bundle of 25$0.55 per box
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
4" × 4" × 3"
Board / material
ECT-32 Single Wall Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 4" × 4" × 3" (L × W × H) |
|---|---|
| Board / material | ECT-32 Single Wall Corrugated |
| Color | Kraft |
| Sold as | Bundle of 25 |
| Physical units per order increment | 25 (one bundle) |
| Bundle weight | 2.2 lb |
| Outer carton (shipping) | 8.25 × 7.5 × 6.25 in |
| LTL freight class | Class 125 |
| GTIN | 848109005843 |
| SKU | 443 |
About this item
SKU 443 — 4" × 4" × 3", ECT-32 Single Wall Corrugated, Kraft. Sold as a bundle of 25, shipped from US warehouses.
Compact 4x4x3 " corrugated boxes built from ECT-32 kraft material for reliable protection on lightweight items and small parts shipments. This 25-box bundle delivers cost-effective packaging for warehouse operations, e-commerce fulfillment, and storage applications. Recyclable kraft construction supports your sustainability goals while maintaining structural integrity.
Ideal for shipping apparel, books, mugs, accessories, gifts, and small fragile items. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.
Small shipping boxes: Good fit for shipping mugs, candles, cosmetics, books, accessories, gifts, and small fragile items. These corrugated boxes help small businesses, ecommerce teams, and warehouse shippers match products to the right box size for everyday fulfillment.
Compare nearby options
Larger, smaller and stronger options from the same family. Prices shown are current case prices; freight is calculated at checkout.
Common questions
What is ECT-32 and why does it matter for my shipping operation?
ECT (Edge Crush Test) 32 indicates the box can withstand 32 pounds of pressure per linear inch when crushed along the edge. This rating ensures safe stacking in warehouses and during transit, preventing product damage while using single-wall construction to reduce packaging costs compared to double-wall alternatives.
How much weight can these 4x4x3 boxes safely hold?
ECT-32 single-wall boxes typically support 15-25 pounds per box depending on contents and stacking height. For exact payload specifications, consult our packaging engineers or test with your specific products to ensure optimal stack performance.
Are these boxes suitable for pallet stacking in high-volume warehouses?
Yes. ECT-32 kraft corrugated is engineered for standard warehouse pallet configurations and provides excellent stacking strength when loaded properly. The compact 3-inch height maximizes pallet utilization while maintaining structural integrity across 4-6 pallet heights.
Do you offer volume discounts or bulk pallet orders for these boxes?
Yes. We offer tiered pricing on bulk orders and full pallet quantities. Contact our B2B sales team for custom quotes on volume purchases, freight consolidation, and subscription pricing for ongoing fulfillment operations.
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.