In stock SKU HD1812DW

18x12x12 ECT-48 Corrugated Shipping Boxes Heavy Duty 15-Pack HD1812DW

$45.51 / bundle of 15$3.03 per box
= 15 boxes · Item subtotal $45.51

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

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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
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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.

Shipping policyReturn policy

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Inside dimensions 18" × 12" × 12"
Construction Standard
Board / material ECT-48 Double Wall Corrugated
Color Kraft
Freight class Class 125
18x12x12 ECT-48 Corrugated Shipping Boxes Heavy Duty 15-Pack HD1812DW

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" × 12" (L × W × H)
Board / materialECT-48 Double Wall Corrugated
ColorKraft
Sold asBundle of 15
Physical units per order increment15 (one bundle)
Bundle weight28.02 lb
Outer carton (shipping)30.5 × 25.0 × 8.0 in
LTL freight classClass 125
SKUHD1812DW

About this item

SKU HD1812DW — 18" × 12" × 12", ECT-48 Double Wall Corrugated, Kraft. Sold as a bundle of 15, shipped from US warehouses.

18x12x12 ECT-48 corrugated shipping boxes heavy duty 15-Pack. 15-pack: 15 boxes in the bundle. Pack products for transit, store inventory on shelves, or stage orders for pickup. ECT-48 rated corrugated board. Natural kraft finish. Also known as shipping cartons, corrugated cartons, or mailing boxes. This is the 15-count listing; a 25-count bulk option is a separate listing.

Compare nearby options

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

ECT-48 heavy-duty double wall corrugated boxes engineered for maximum protection and stacking performance. 20" x 12" x 12" kraft cartons rated for demanding warehouse and fulfillment environments. Ships flat in bundles of 15 to minimize storage footprint and freight costs.Larger size 20x12x12 ECT-48 Double Wall Corrugated Boxes 15-Pack SKU HD201212DW · BUNDLE $55.39Industrial-grade ECT-48 double wall corrugated boxes engineered for maximum stacking performance and freight efficiency. 15x12x12" kraft cartons ship flat to reduce storage footprint. Bundle of 15 boxes–the heavy duty standard for warehouse operations.Smaller size 15x12x12 ECT-48 Kraft Double Wall Corrugated Boxes 15-Pack SKU HD151212DW · BUNDLE $67.58Fold this 18x12x12 ECT-32 kraft corrugated box down to 6", 9", or 12" height with pre-scored sides–no carton sizer needed. Consolidate multiple SKUs into one inventory item and eliminate dimensional weight overages on parcel shipments. Sold as a bundle of 25 adjustable boxes.Same size, different spec 18x12x12 ECT-32 Multi-Depth Corrugated Shipping Boxes 25-Pack SKU MD181212 · BUNDLE $56.14ECT-48 double wall kraft corrugated boxes designed for warehouse and fulfillment operations requiring maximum durability and ergonomic handling. Each 18" × 12" × 12" box features reinforced hand holes for convenient grip and transport, with heavy-duty construction that delivers superior stacking performance and protection for mid-weight to heavy products. Sold as a bundle of 15 units.Same size, different spec 18x12x12 ECT-48 Double Wall Corrugated Shipping Boxes w/ Hand Holes 15-Pack SKU HD181212DWHH · BUNDLE $72.56

Frequently bought with

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

Common questions

What does ECT-48 mean, and why does it matter for my warehouse?
ECT (Edge Crush Test) measures horizontal crush strength. ECT-48 means the box wall resists 48 lbs of force per linear inch before failure. This rating ensures safe stacking of 3-4 pallet layers without box collapse, critical for warehouse density and freight efficiency.
How much weight can a single 18x12x12 double wall carton handle?
Double wall ECT-48 construction typically supports 65-85 lbs gross weight per carton depending on contents distribution and stacking configuration. Confirm exact load limits with product testing for your specific product density.
Will flat-shipped bundles reduce my warehouse receiving and storage costs?
Yes. Receiving flat bundles cuts inbound freight spend by 40-60% versus pre-assembled boxes. Flat storage requires minimal space until assembly, allowing just-in-time inventory practices that reduce overall packaging overhead.
Are these cartons compatible with automated packing lines?
Yes. Standard 18x12x12 dimensions integrate with most conveyor-fed automated packers. The kraft finish provides excellent grip for mechanical feeders without adhesion issues common with coated surfaces.

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.

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