In stock SKU HD18128DW

18x12x8 ECT-48 Double Wall Corrugated Boxes 15-Pack HD18128DW

$41.66 / bundle of 15$2.78 per box
= 15 boxes · Item subtotal $41.66

Before shipping and tax. Final discounts and total are confirmed in the cart.

Request bulk pricing
Secure checkout
  • Visa
  • Mastercard
  • PayPal
  • American Express
  • Apple Pay
  • Google Pay
  • Shop Pay
  • Discover
  • Diners Club
  • Ach Direct Debit
Volume pricing — applied automatically in the cart
Quantity (bundle)Item-subtotal discount
1–2Base item price
3–53% off qualifying item subtotal
6+5% off qualifying item subtotal
Pallet or repeat ordersGet a delivered quote
Buying by the case? See every size in Heavy Duty and Double Wall Shipping Boxes
Shipping & deliveryCheck cost to your ZIP code
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.

Shipping policyReturn policy

Need a hand? Talk to our team

Inside dimensions 18" × 12" × 8"
Board / material ECT-48 Double 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.”

Kerri PorterAmerican Vulkan

“They helped us choose the right packaging for our products and made ordering easy.”

Scott HobbsPackrift customer

“Ordering was easy, everything arrived as described, and we’ll definitely order again.”

Cheryl ChristSimply Home Relocation
Questions before you order?Talk to us

Specifications

Inside dimensions18" × 12" × 8" (L × W × H)
Board / materialECT-48 Double Wall Corrugated
ColorKraft
Sold asBundle of 15
Physical units per order increment15 (one bundle)
Bundle weight21.48 lb
Outer carton (shipping)30.5 × 21.0 × 8.25 in
LTL freight classClass 125
SKUHD18128DW

About this item

SKU HD18128DW — 18" × 12" × 8", ECT-48 Double Wall Corrugated, Kraft. Sold as a bundle of 15, shipped from US warehouses.

18x12x8 ECT-48 double wall corrugated boxes 15-Pack. Use them to ship e-commerce orders, store stock, or pack for a move. ECT-48 board (48 lb per inch edge crush). Natural kraft finish. Also known as shipping cartons, corrugated cartons, or mailing boxes. Sold as a 15-pack (15 boxes per pack). Handles routine outbound shipping as well as on-site storage and moves.

Common questions

What does ECT-48 rating mean for my shipping operations?
ECT (Edge Crush Test) 48 indicates the material can withstand 48 pounds of force per linear inch before crushing. Double wall construction at this rating provides stacking strength, allowing safe 4-6 carton stacking in warehouse conditions and protecting contents during rough handling.
How much warehouse space do I save by ordering flat boxes?
Flat cartons reduce storage footprint by 80% compared to pre-assembled boxes. A bundle of 15 flat boxes occupies minimal pallet space, enabling higher inventory turnover and lower storage costs while maintaining quick assembly when needed.
Are these boxes suitable for heavy or fragile items?
Yes. The ECT-48 double wall construction provides excellent crush and puncture resistance, making these boxes ideal for mid-to-heavy items, electronics, glassware, and fragile goods. The robust kraft material minimizes product damage and reduces freight claims.
What volume discounts apply when ordering multiple bundles?
Contact our B2B sales team for volume pricing. Orders of 10+ bundles (150+ boxes) qualify for tiered discounts, and we offer freight consolidation on bulk purchases to maximize your logistics savings.

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.