18x18x18 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 20-Pack HD1818
$92.73
/ bundle of 20$4.64 per box
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| Quantity (bundle) | Item-subtotal discount |
|---|---|
| 1–2 | Base item price |
| 3–5 | 3% off qualifying item subtotal |
| 6+ | 5% off qualifying item subtotal |
| Pallet or repeat orders | Get a delivered quote |
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Shipping & returns details
Ships from U.S. warehouses. 30-day returns on unopened stock items.
Shipping cost and timing depend on the product, quantity and destination. Parcel or freight service is used as appropriate. Shipping discounts apply only to qualifying orders and rates.
Standard delivery is to street addresses in the contiguous U.S. Eligible returns must be unused and in original packaging; return shipping may apply.
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Inside dimensions
18" × 18" × 18"
Board / material
ECT-44 Single Wall Corrugated
Color
Kraft
Freight class
Class 125
From our customers
“The packaging is sturdy, well-made, and looks professional. We’re really pleased with the quality.”
“They helped us choose the right packaging for our products and made ordering easy.”
“Ordering was easy, everything arrived as described, and we’ll definitely order again.”
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Specifications
| Inside dimensions | 18" × 18" × 18" (L × W × H) |
|---|---|
| Board / material | ECT-44 Single Wall Corrugated |
| Color | Kraft |
| Sold as | Bundle of 20 |
| Physical units per order increment | 20 (one bundle) |
| Bundle weight | 47.22 lb |
| Outer carton (shipping) | 36.5 × 36.25 × 6.75 in |
| LTL freight class | Class 125 |
| SKU | HD1818 |
About this item
SKU HD1818 — 18" × 18" × 18", ECT-44 Single Wall Corrugated, Kraft. Sold as a bundle of 20, shipped from US warehouses.
18x18x18 ECT-44 kraft heavy-duty corrugated shipping boxes 20-Pack. ECT-44 board (44 lb per inch edge crush). Natural kraft finish. Use them to ship e-commerce orders, store stock, or pack for a move. Also called shipping cartons, corrugated cartons, or mailing boxes. Kraft, not white: the white option is listed separately. Pack of 20 (20-pack).
Compare nearby options
Larger, smaller and stronger options from the same family. Prices shown are current case prices; freight is calculated at checkout.
Larger size
24x18x18 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 10-Pack
$53.89
Smaller size
18x18x12 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 25-Pack
$93.75
Stronger option
18x18x18 ECT-48 Kraft Heavy Duty Double Wall Corrugated Shipping Boxes 10-Pack
$54.80
Same size, different spec
18x18x18 ECT-90 Triple Wall Corrugated Boxes 5-Pack
$187.43
Common questions
What does ECT-44 mean, and why does it matter for my operation?
ECT (Edge Crush Test) rating measures corrugated cardboard strength. ECT-44 means 44 lbs of force per linear inch before crushing, 40% higher than standard ECT-32 boxes. For warehouse managers, this translates to safer pallet stacking, fewer damaged shipments, and lower replacement costs over annual volume.
How many of these boxes can I safely stack on a standard pallet?
With ECT-44 single-wall construction, you can safely stack 6 - 8 boxes high depending on product weight and pallet configuration. This maximizes cubic utilization while minimizing compression damage, improving freight efficiency on both inbound and outbound shipments.
Are these boxes compatible with automated packing systems?
Yes. The 18x18x18" dimension is a standard footprint that integrates directly with most conveyor and automated case-erecting equipment. Flat-pack bundling ensures rapid setup and minimal line downtime during changeovers.
Can I order partial bundles or custom quantities?
Standard sales unit is bundles of 20. For high-volume accounts requiring custom quantities or direct-to-warehouse drop-shipping, contact our sales team to discuss volume pricing and logistics optimization.
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.