Large Cardboard Boxes (18"+)

IN STOCK Protect high-value shipments with ECT-48 double wall kraft corrugated boxes designed for superior stacking performance and freight stability. These 18x18x24 heavy-duty cartons deliver maximum cushioning and compression resistance. Bundle of 10 ships flat to maximize your warehouse space and reduce logistics costs.
Boxes - Corrugated

18x18x24 ECT-48 Double Wall Kraft Boxes - Heavy Duty Shipping Cartons, Bundle of 10

PN: HD181824DW

18 x 18 x 24 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$66.92 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes sized 26
Boxes - Corrugated

26x17x5" ECT-32 Kraft Corrugated Shipping Boxes - Bundle of 25

PN: 26175

26 x 17 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$120.42 / BUNDLE
IN STOCK Professional-grade 24x18x24 double wall corrugated boxes built with ECT-48 kraft material for maximum protection and stacking performance. These heavy-duty shipping cartons handle demanding logistics while flat-shipping design cuts your storage footprint. Sold in bundles of 10 for volume efficiency.
Boxes - Corrugated

24x18x24 ECT-48 Double Wall Kraft Boxes - Heavy-Duty Shipping, Bundle of 10

PN: HD241824DW

24 x 18 x 24 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$77.29 / BUNDLE
IN STOCK Protect high-value shipments with ECT-48 double wall construction and proven stacking performance. These 6x6x36 kraft corrugated boxes deliver superior burst strength and compression resistance for warehouses handling demanding freight. Bundle of 15 ships flat–maximize your storage efficiency and reduce handling costs.
Boxes - Corrugated

6x6x36 ECT-48 Double Wall Kraft Boxes - Heavy Duty Shipping Cartons, Bundle of 15

PN: HD6636DW

6 x 6 x 36 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$85.56 / BUNDLE
IN STOCK Industry-standard 30x13x13 corrugated boxes with ECT-32 single wall construction deliver reliable strength for mid-size shipments. Bundle of 20 ships and stores completely flat, cutting your warehouse footprint by up to 80%. Perfect for e-commerce fulfillment, retail distribution, and storage applications.
Boxes - Corrugated

30x13x13 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 301313

30 x 13 x 13 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$100.33 / BUNDLE
IN STOCK Heavy-duty ECT-32 kraft corrugated boxes sized 24
Boxes - Corrugated

24x20x20 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 242020

24 x 20 x 20 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$47.09 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 36x8x8 corrugated boxes featuring wide side openings for fast packing. ECT-32 kraft construction provides reliable protection while minimizing dimensional weight charges. Sold flat in bundles of 25 for space-saving storage and fast deployment.
Boxes - Corrugated

36x8x8 Shipping Boxes - ECT-32 Kraft Corrugated, 25-Pack

PN: 3688

36 x 8 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$54.69 / BUNDLE
IN STOCK Ship long, narrow items efficiently with our 36x8x4 ECT-32 kraft corrugated boxes. Long-side opening design speeds packing for wine bottles, umbrellas, carpet rolls, and similar products. Sold in convenient 25-box bundles–maximize your freight efficiency and reduce per-unit packaging costs.
Boxes - Corrugated

36x8x4 ECT-32 Kraft Corrugated Long Boxes - 25-Pack Bundle

PN: 3684

36 x 8 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$68.11 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 34x10x6 corrugated boxes featuring convenient long-side openings for fast packing. Made from ECT-32 kraft corrugated material with proven stacking strength. Sold flat in bundles of 10 to maximize your storage and freight efficiency.
Boxes - Corrugated

34x10x6 Shipping Boxes - ECT-32 Kraft Corrugated, 10-Pack

PN: 34106

34 x 10 x 6 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$21.43 / BUNDLE
IN STOCK Streamline packing of long, narrow items with these 32x12x12 corrugated boxes featuring wide lengthwise openings for fast loading. ECT-32 kraft corrugated construction delivers reliable protection while the slim profile maximizes freight efficiency. Bundle of 20 ships flat to save storage space.
Boxes - Corrugated

32x12x12 Shipping Boxes - ECT-32 Kraft Corrugated, 20-Pack

PN: 321212

32 x 12 x 12 in ECT-32 Corrugated 20 PER BUNDLE
$58.32 / BUNDLE
IN STOCK Ship long, narrow items efficiently with our 32x12x10 ECT-32 kraft corrugated boxes. Engineered long side opening for fast, easy packing of wine bottles, umbrellas, carpet rolls, and similar products. Sold as a bundle of 20 boxes, flat-shipped to maximize your freight efficiency.
Boxes - Corrugated

32x12x10 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 321210

32 x 12 x 10 in ECT-32 Corrugated 20 PER BUNDLE
$55.16 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes sized 30
Boxes - Corrugated

30x14x10 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 301410

30 x 14 x 10 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$29.70 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes sized 30
Boxes - Corrugated

30x14x7" ECT-32 Kraft Corrugated Boxes - Bulk Bundle of 10

PN: 30147

30 x 14 x 7 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$25.75 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 28
Boxes - Corrugated

28x16x14 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 281614

28 x 16 x 14 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$60.06 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes in 28
Boxes - Corrugated

28x16x12 ECT-32 Kraft Corrugated Shipping Boxes, 10-Pack

PN: 281612

28 x 16 x 12 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$35.28 / BUNDLE
IN STOCK ECT-32 single wall corrugated boxes built for industrial shipping and warehouse storage. These 28
Boxes - Corrugated

28x16x10 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 281610

28 x 16 x 10 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$65.41 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes sized 28
Boxes - Corrugated

28x16x7 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 28167

28 x 16 x 7 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$60.11 / BUNDLE
IN STOCK Eliminate carton sizing complexity with pre-scored multi-depth corrugated boxes that fold to your exact dimensions. These ECT-32 kraft shipping cartons reduce inventory SKU count and parcel shipping costs by letting you right-size every box. Bundle of 10 boxes delivers immediate cost savings for warehouse and fulfillment operations.
Boxes - Corrugated

26x18x16 Multi-Depth Corrugated Boxes ECT-32 Kraft - Bundle of 10

PN: MD261816

26 x 18 x 16 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$44.21 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes in 26x18x16
Boxes - Corrugated

26x18x16 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 261816

26 x 18 x 16 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$40.80 / BUNDLE
IN STOCK Industrial-grade 26x18x14
Boxes - Corrugated

26x18x14" ECT-32 Kraft Corrugated Boxes - Bulk Bundle of 10

PN: 261814

26 x 18 x 14 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$42.92 / BUNDLE
IN STOCK ECT-32 single wall corrugated boxes sized 26
Boxes - Corrugated

26x18x12 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 261812

26 x 18 x 12 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$54.14 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated boxes in 26x18x10
Boxes - Corrugated

26x18x10" ECT-32 Kraft Corrugated Boxes - Bundle of 15

PN: 261810

26 x 18 x 10 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$61.24 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 24x20x18
Boxes - Corrugated

24x20x18" ECT-32 Kraft Corrugated Boxes - Heavy-Duty Shipping, Bundle of 10

PN: 242018

24 x 20 x 18 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$44.89 / BUNDLE
IN STOCK Industrial-grade 24x20x16 corrugated boxes built from ECT-32 kraft material for dependable strength and stackability. Sold in convenient bundles of 10, these shipping cartons deliver consistent performance for high-volume warehouse and fulfillment operations. Recyclable cardboard construction cuts waste and costs.
Boxes - Corrugated

24x20x16 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 242016

24 x 20 x 16 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$43.22 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes built for industrial warehouses and fulfillment operations. These 24
Boxes - Corrugated

24x20x14" ECT-32 Kraft Corrugated Boxes - Industrial Strength, Bundle of 10

PN: 242014

24 x 20 x 14 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$40.80 / BUNDLE
IN STOCK ECT-32 single wall corrugated boxes in 24
Boxes - Corrugated

24x20x12 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 242012

24 x 20 x 12 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$39.14 / BUNDLE
IN STOCK Industrial-grade 24x20x10 corrugated shipping boxes built from ECT-32 single-wall kraft material for dependable protection and efficient stacking. Each bundle includes 10 boxes, reducing your per-unit cost while maintaining the structural integrity your warehouse demands. 100% recyclable kraft construction meets sustainability goals without sacrificing performance.
Boxes - Corrugated

24x20x10 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 242010

24 x 20 x 10 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$36.82 / BUNDLE
IN STOCK ECT-32 kraft corrugated cartons engineered for shallow products and maximum freight efficiency. These 24x20x8 shipping boxes ship flat in bundles of 20, reducing your warehouse footprint and freight costs while maintaining reliable stacking performance.
Boxes - Corrugated

24x20x8 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 24208

24 x 20 x 8 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$91.61 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 24x20x6
Boxes - Corrugated

24x20x6 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 24206

24 x 20 x 6 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$31.38 / BUNDLE
IN STOCK Heavy-duty ECT-32 kraft corrugated boxes built for high-volume fulfillment operations. Each 22x22x20
Boxes - Corrugated

22x22x20 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 222220

22 x 22 x 20 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$53.30 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 22
Boxes - Corrugated

22x22x18" ECT-32 Kraft Corrugated Boxes - Heavy-Duty Shipping, Bundle of 10

PN: 222218

22 x 22 x 18 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$46.32 / BUNDLE
IN STOCK Professional-grade ECT-32 kraft corrugated shipping boxes sized 22
Boxes - Corrugated

22x22x16 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 222216

22 x 22 x 16 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$45.50 / BUNDLE
IN STOCK Professional-grade 22x22x14
Boxes - Corrugated

22x22x14" ECT-32 Kraft Corrugated Boxes - Bundle of 10

PN: 222214

22 x 22 x 14 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$42.91 / BUNDLE
IN STOCK Heavy-duty 22x22x12 corrugated shipping boxes built from ECT-32 kraft material for reliable stacking and freight efficiency. Sold as a bundle of 10 units. Fully recyclable and ideal for warehouse managers handling medium-weight products with superior crush resistance.
Boxes - Corrugated

22x22x12 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 222212

22 x 22 x 12 in ECT-32 Corrugated 10 PER BUNDLE
$41.80 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 22
Boxes - Corrugated

22x22x10 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 222210

22 x 22 x 10 in ECT-32 Corrugated 15 PER BUNDLE
$57.67 / BUNDLE
IN STOCK Ship smarter with 22x22x6 ECT-32 kraft corrugated boxes–engineered for shallow products like apparel, books, and artwork. Each bundle of 15 ships flat, maximizing your warehouse storage and cutting freight costs. Reliable ECT-32 strength meets real-world fulfillment demands.
Boxes - Corrugated

22x22x6 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 22226

22 x 22 x 6 in ECT-32 Corrugated 15 PER BUNDLE
$52.52 / BUNDLE
IN STOCK ECT-32 kraft corrugated cartons sized 22
Boxes - Corrugated

22x22x4 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 22224

22 x 22 x 4 in ECT-32 Corrugated 10 PER BUNDLE
$31.52 / BUNDLE
IN STOCK Industrial-grade 36x8x8 heavy duty double wall corrugated boxes engineered for demanding warehouse environments. ECT-48 rated construction delivers superior stacking strength and crush resistance. Ships flat in bundles of 15 to optimize freight costs and storage footprint.
Boxes - Corrugated

36x8x8 ECT-48 Double Wall Corrugated Box - Heavy Duty, Bundle of 15

PN: HD3688DW

36 x 8 x 8 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$76.11 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 28x16x5 dimensions–engineered for shallow products like apparel, books, and artwork. Ships flat in bundles of 25 to maximize your warehouse storage and reduce freight expenses. Reliable single-wall construction meets shipping demands without excess material cost.
Boxes - Corrugated

28x16x5 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 28165

28 x 16 x 5 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$109.00 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes sized 26
Boxes - Corrugated

26x18x18 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 261818

26 x 18 x 18 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$98.86 / BUNDLE
IN STOCK Industry-standard 24x20x24
Boxes - Corrugated

24x20x24" ECT-32 Kraft Corrugated Boxes - Bulk Bundle of 10

PN: 242024

24 x 20 x 24 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$81.41 / BUNDLE
IN STOCK Heavy-duty ECT-48 double wall corrugated boxes engineered for warehouse and fulfillment operations. 24x20x12 kraft cartons with integrated hand holes ship flat to maximize freight efficiency and reduce storage footprint. Bundle of 10 boxes.
Boxes - Corrugated

24x20x12 ECT-48 Double Wall Shipping Boxes with Hand Holes, Pack of 10

PN: HD242012DWHH

24 x 20 x 12 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$81.73 / BUNDLE
IN STOCK Protect high-value shipments with these ECT-48 heavy-duty double wall corrugated boxes (24x20x12). Superior stacking performance and burst strength for demanding warehouse operations. Ships flat in bundles of 10–maximize storage efficiency and reduce freight costs.
Boxes - Corrugated

24x20x12 ECT-48 Double Wall Corrugated Boxes - Heavy-Duty Shipping, Bundle of 10

PN: HD242012DW

24 x 20 x 12 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$61.67 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes with shallow 4
Boxes - Corrugated

24x20x4" ECT-32 Kraft Corrugated Boxes - Shallow Depth, Bundle of 20

PN: 24204

24 x 20 x 4 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$84.26 / BUNDLE
IN STOCK Heavy-duty ECT-44 single wall kraft corrugated boxes designed for maximum stacking strength and protection. At 22x22x22 inches, these 40% stronger cartons optimize freight efficiency while reducing damage claims. Sold flat in convenient bundles of 10.
Boxes - Corrugated

22x22x22 ECT-44 Heavy-Duty Kraft Corrugated Boxes - Bundle of 10

PN: HD222222

22 x 22 x 22 in ECT-44 Single Wall Corrugated 10 PER BUNDLE
$69.09 / BUNDLE
IN STOCK Eliminate carton sizer complexity with pre-scored multi-depth corrugated boxes that fold to five different heights–perfect fit every time. ECT-32 kraft construction delivers durability while reducing your carton inventory and per-unit shipping costs. Sold as a bundle of 10.
Boxes - Corrugated

22x22x22" Multi-Depth Corrugated Boxes ECT-32 Kraft - Bundle of 10

PN: MD222222

22 x 22 x 22 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$52.04 / BUNDLE
IN STOCK Ship round and irregularly shaped products with confidence using these ECT-32 kraft corrugated cube boxes. Each 22x22x22
Boxes - Corrugated

22x22x22" ECT-32 Kraft Corrugated Cube Boxes - Bundle of 10

PN: 222222

22 x 22 x 22 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$46.29 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping cartons sized 22
Boxes - Corrugated

22x22x8 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 22228

22 x 22 x 8 in ECT-32 Corrugated 15 PER BUNDLE
$54.14 / BUNDLE

Product Help Request

Send the SKU, quantity, delivery ZIP, and any required specs so we can route the request.

Overview

Large cardboard boxes — 18" and up on the longest side, through 24x24x24 cubes and long side-loading cartons past 36". Bundle quantities with per-box pricing shown, shipped from 5 US regional warehouses.

How to choose: at these sizes the box wall does real structural work — anything dense belongs in double wall / ECT-44+, and anything palletized should be checked against pallet footprint before ordering. Dimensional weight dominates parcel pricing here, so oversizing costs twice: material and freight. Bulk-scale loads? Consider gaylord boxes instead. Full reference at the size chart.

Frequently asked questions

When should I use double wall for a large box?
Once contents pass roughly 40–65 lb or the box will be stacked on a pallet, step up from ECT-32 to double wall (ECT-44/48). Large single-wall boxes bulge and crush under loads a smaller box of the same grade handles fine.

Do large boxes cost more to ship?
Usually, and mostly through dimensional weight rather than actual weight. Carriers price the space a large box occupies; the tightest size that safely fits your load is the cheapest one to ship.

Updated August 1, 2026. Sizes refresh automatically as catalog stock changes.

Buying path

Buy Large Cardboard Boxes (18"+) by the specs that change the order

Use filters, product titles, and product pages to compare size, material, pack count, case quantity, and fit before ordering.

Compare

Use filters and product titles to narrow by the specs that affect fit.

Confirm

Open the product page before ordering a case so you can check quantity, unit, and limits.

Reorder

Save the SKU or product link for repeat purchasing and support questions.

Larger orders

For pallet, recurring, or mixed-SKU needs, send support the details before placing a large order.

What to check first

  • Inside dimensions
  • Board grade or strength rating
  • Box style and closure
  • Case or bundle quantity
Common wrong-order risk: Choosing the outside size instead of the inside size. Confirm product fit, void fill, and storage space before ordering.
Use the box size calculator -> Contact support for larger orders -> Compare corrugated box types -> View products below ->