18x18x20 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack
$56.16
/ bundle of 15$3.74 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" × 18" × 20"
Board / material
ECT-32 Single Wall Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 18" × 18" × 20" (L × W × H) |
|---|---|
| Board / material | ECT-32 Single Wall Corrugated |
| Color | Kraft |
| Sold as | Bundle of 15 |
| Order in multiples of | 15 |
| Bundle weight | 28.92 lb |
| Outer carton (shipping) | 38.75 × 36.5 × 5.0 in |
| LTL freight class | Class 125 |
| GTIN | 841436048712 |
| SKU | 181820 |
About this item
SKU 181820 — 18" × 18" × 20", ECT-32 Single Wall Corrugated, Kraft. Sold as a bundle of 15, shipped from US warehouses.
ECT-32 kraft corrugated boxes in 18x18x20 " dimensions deliver proven stacking strength and crush resistance for high-volume warehouse operations. Single-wall construction reduces freight costs while maintaining structural integrity. Sold as a convenient bundle of 15 boxes, ideal for mid-range shipments and inventory management.
Ideal for shipping bulky items, moving supplies, large equipment, and bulk fulfillment. A sturdy, reliable choice for small-business, Etsy, and ecommerce shippers.
Large shipping boxes: Good fit for shipping bulky household goods, moving supplies, large equipment, soft goods, and bulk fulfillment. These corrugated boxes help small businesses, ecommerce teams, and warehouse shippers match products to the right box size for everyday fulfillment.
Common questions
What is ECT-32 and why does it matter for my shipping needs?
ECT (Edge Crush Test) measures cardboard's stacking strength. ECT-32 provides 32 pounds of crush resistance per linear inch, making it ideal for standard commercial shipping. It balances durability with cost, preventing product damage while keeping per-box expenses competitive for high-volume operations.
How many of these boxes fit on a standard pallet?
Approximately 90-100 bundles (1,350-1,500 boxes) fit on a standard 40" x 48" pallet, depending on stacking height and your warehouse configuration. This density maximizes freight efficiency and reduces inbound logistics costs.
Can I stack these boxes safely in my warehouse?
Yes. ECT-32 single-wall construction supports typical warehouse stacking heights (6-8 feet) when boxes are properly filled and palletized. For maximum safety, maintain 75% fill-rate and avoid overstuffing to preserve edge crush performance.
Are these boxes eco-friendly for customer returns or resale?
Absolutely. 100% recyclable kraft material supports sustainability goals and enhances brand perception with environmentally conscious customers. The natural kraft finish requires no coating, making recycling simple and cost-effective.
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.