In stock SKU HD181818TWGTIN 841436007177

18x18x18 ECT-90 Triple Wall Corrugated Boxes 5-Pack

$187.43 / bundle of 5$37.49 per box
= 5 boxes · Item subtotal $187.43

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

Secure checkout
  • Visa
  • Mastercard
  • PayPal
  • American Express
  • Apple Pay
  • Google Pay
  • Shop Pay
  • Discover
  • Diners Club
  • Ach Direct Debit
Request bulk pricing
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
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" × 18" × 18"
Board / material ECT-90 Triple Wall Corrugated
Color Kraft
Freight class Class 125
ECT-90 triple wall corrugated construction delivers industrial-grade protection for high-volume shipping and storage. These 18" cube boxes offer over ½" wall thickness for maximum stacking performance and freight stability. Bundle of 5 heavy-duty cartons ready to ship.

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" × 18" × 18" (L × W × H)
Board / materialECT-90 Triple Wall Corrugated
ColorKraft
Sold asBundle of 5
Physical units per order increment5 (one bundle)
Bundle weight36.2 lb
Outer carton (shipping)38.0 × 37.5 × 5.75 in
LTL freight classClass 125
GTIN841436007177
SKUHD181818TW

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.

Compare nearby options

Larger, smaller and stronger options from the same family. Prices shown are current case prices; freight is calculated at checkout.

Industrial-grade 24x24x24 triple wall corrugated boxes engineered for heavy loads and long-distance shipments. ECT-90 kraft construction delivers over ½" thickness and plywood-equivalent protection without premium pricing. Sold in bundles of 5 to maximize freight efficiency and reduce per-unit costs.Larger size 24x24x24 ECT-90 Triple Wall Corrugated Boxes 5-Pack SKU HD242424TW · BUNDLE $159.86Industrial-grade 14x14x14" triple wall corrugated boxes with ECT-90 rating deliver maximum crush and stacking strength for high-volume fulfillment operations. Kraft material ships flat to optimize warehouse storage and freight costs. Bundle of 5 boxes reduces per-unit pricing and simplifies reorder management.Smaller size 14x14x14 ECT-90 Triple Wall Corrugated Boxes 5-Pack SKU HD141414TW · BUNDLE $115.47Heavy-duty ECT-48 double wall corrugated boxes built to protect high-value freight and maximize stacking efficiency in your warehouse. Each bundle includes 10 flat-shipped 18x18x18" kraft cartons, reducing storage footprint while delivering superior burst strength and crush resistance. Ideal for printers, electronics, and mid-sized industrial components.Same size, different spec 18x18x18 ECT-48 Kraft Heavy Duty Double Wall Corrugated Shipping Boxes 10-Pack SKU HD1818DW · BUNDLE $54.80Professional-grade 18x18x18 corrugated shipping boxes built from ECT-48 double wall kraft material for maximum durability and stacking performance. Integrated hand holes enable efficient manual handling and reduce fulfillment labor. Sold as a bundle of 10 boxes–ideal for warehouse managers requiring heavy-duty protection without sacrificing operational speed.Same size, different spec 18x18x18 ECT-48 Double Wall Corrugated Shipping Boxes w/ Hand Holes 10-Pack SKU HD181818DWHH · BUNDLE $84.78

Frequently bought with

Light add-ons for this order: tape, labels, dispensers and packing-list envelopes.

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.

+1 (302) 216-2975 support@packrift.com Mon–Fri, Eastern Corrugated buying guide →