18x18x18" ECT-90 Triple Wall Corrugated Boxes - Heavy-Duty Shipping, Bundle of 5
$165.80
/ bundle of 5$33.16 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" × 18"
Board / material
ECT-90 Triple Wall Corrugated
Color
Kraft
Freight class
Class 125
Specifications
| Inside dimensions | 18" × 18" × 18" (L × W × H) |
|---|---|
| Board / material | ECT-90 Triple Wall Corrugated |
| Color | Kraft |
| Sold as | Bundle of 5 |
| Order in multiples of | 5 |
| Bundle weight | 36.2 lb |
| Outer carton (shipping) | 38.0 × 37.5 × 5.75 in |
| LTL freight class | Class 125 |
| GTIN | 841436007177 |
| SKU | HD181818TW |
About this item
SKU HD181818TW — 18" × 18" × 18", ECT-90 Triple Wall Corrugated, Kraft. Sold as a bundle of 5, shipped from US warehouses.
ECT-90 triple wall corrugated construction delivers protection for high-volume shipping and storage. These 18 " cube boxes offer over 1/2 " wall thickness for maximum stacking performance and freight stability. Bundle of 5 heavy-duty cartons ready to ship.
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
How does ECT-90 triple wall compare to standard single-wall boxes?
ECT-90 triple wall delivers 90 lbs per inch of edge crush strength, equivalent to plywood crate performance, versus 32 lbs for single wall. This means protection, higher stacking capacity, and damage-free delivery of heavy or fragile freight at 60-70% lower cost than wood alternatives.
What's the maximum stacking weight for these boxes?
ECT-90 triple wall 18x18x18" boxes support heavy stacking in warehouse and truck environments. Stack height depends on product weight and storage duration, but the robust construction handles typical industrial loads of 50+ lbs per box with full pallet stacking capability.
Will this box fit standard pallet configurations?
Yes. The 18x18x18" cube dimensions are optimized for standard 40x48" pallets, allowing efficient 4-box-per-layer stacking (two rows x two columns) with 10-14 layers per pallet, maximizing freight density and reducing per-unit shipping cost.
Are these boxes recyclable and eco-friendly?
Absolutely. Kraft corrugated is 100% recyclable and sourced from sustainable materials. Choosing ECT-90 triple wall over wood or plastic crates reduces environmental impact while meeting corporate sustainability commitments.
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.