Large Cardboard Boxes (18"+)

IN STOCK ECT-90 triple wall corrugated construction delivers industrial-grade protection for high-volume shipping and storage. These 18
Boxes - Corrugated

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

PN: HD181818TW

18 x 18 x 18 in ECT-90 Triple Wall Corrugated 5 PER BUNDLE
$187.43 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 32x6x6 ECT-32 kraft corrugated boxes. Wide length openings reduce packing time and damage risk. Sold as a bundle of 25 boxes–maximize your freight efficiency without over-packaging.
Boxes - Corrugated

32x6x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 3266

32 x 6 x 6 in ECT-32 Corrugated 25 PER BUNDLE
$39.58 / BUNDLE
IN STOCK Ship long, narrow items efficiently with our 30x8x8 corrugated boxes made from ECT-32 kraft material. Wide opening along the length reduces packing time and labor costs. Sold as bundles of 25 and shipped flat to maximize freight efficiency.
Boxes - Corrugated

30x8x8 ECT-32 Kraft Corrugated Boxes

PN: 3088

30 x 8 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$45.39 / BUNDLE
IN STOCK ECT-32 single wall corrugated boxes sized 24
Boxes - Corrugated

24x14x14 ECT-32 Kraft Corrugated Boxes 15-Pack

PN: 241414

24 x 14 x 14 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$42.36 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes sized 24
Boxes - Corrugated

24x14x10 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 241410

24 x 14 x 10 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$51.15 / BUNDLE
IN STOCK Ship shallow products efficiently with 24x14x8 ECT-32 kraft corrugated boxes–the go-to choice for apparel, books, artwork, and lightweight items. Bundle of 20 ships flat to maximize warehouse space and cut freight costs. Reliable single-wall construction rated for consistent stacking performance.
Boxes - Corrugated

24x14x8 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 24148

24 x 14 x 8 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$46.70 / BUNDLE
IN STOCK Shallow-depth 24x14x6
Boxes - Corrugated

24x14x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 24146

24 x 14 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$54.65 / BUNDLE
IN STOCK Ship shallow products efficiently with our 24x14x4
Boxes - Corrugated

24x14x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 24144

24 x 14 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$48.05 / BUNDLE
IN STOCK Sturdy ECT-32 kraft corrugated boxes sized 22
Boxes - Corrugated

22x16x16 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 221616

22 x 16 x 16 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$50.29 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes sized 22
Boxes - Corrugated

22x16x12 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 221612

22 x 16 x 12 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$78.48 / BUNDLE
IN STOCK Heavy-duty ECT-32 kraft corrugated boxes sized 22
Boxes - Corrugated

22x16x10 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 221610

22 x 16 x 10 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$54.72 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes sized 22
Boxes - Corrugated

22x16x8 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 22168

22 x 16 x 8 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$67.27 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated cartons with a 6
Boxes - Corrugated

22x16x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 22166

22 x 16 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$97.45 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping cartons designed for shallow products and lightweight merchandise. Ship flat in bundles of 25 to maximize warehouse storage and minimize freight expenses. Perfect fit for apparel, books, artwork, and picture frames.
Boxes - Corrugated

22x16x4 ECT-32 Kraft Corrugated Shipping Boxes Single Wall 25-Pack

PN: 22164

22 x 16 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$85.59 / BUNDLE
IN STOCK Industrial-grade 20x18x18
Boxes - Corrugated

20x18x18 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 201818

20 x 18 x 18 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$56.06 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 20
Boxes - Corrugated

20x18x16 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 201816

20 x 18 x 16 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$35.73 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 20
Boxes - Corrugated

20x18x14 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 201814

20 x 18 x 14 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$34.26 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes designed for warehouse efficiency and reliable mid-weight shipments. 20x18x12 dimensions provide optimal stacking performance and freight versatility. Sold as a convenient bundle of 10 to streamline your bulk ordering.
Boxes - Corrugated

20x18x12 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 201812

20 x 18 x 12 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$32.32 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes in 20x18x10 dimensions deliver reliable standard strength performance for mid-weight products and general fulfillment. Each bundle of 10 boxes provides tested stacking durability and cost-effective inventory management. Fully recyclable kraft material supports sustainable warehouse operations.
Boxes - Corrugated

20x18x10 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 201810

20 x 18 x 10 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$29.42 / BUNDLE
IN STOCK Dependable ECT-32 kraft corrugated boxes sized 20
Boxes - Corrugated

20x18x8 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 20188

20 x 18 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$70.35 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 20
Boxes - Corrugated

20x18x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 20186

20 x 18 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$62.88 / BUNDLE
IN STOCK These 20x18x4
Boxes - Corrugated

20x18x4 ECT-32 Kraft Corrugated Boxes 25-Pack

PN: 20184

20 x 18 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$78.43 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 20x8x6 ECT-32 kraft corrugated boxes. Wide openings along the length reduce packing time and labor costs. Sold in bundles of 25 and shipped flat to maximize your warehouse space.
Boxes - Corrugated

20x8x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 2086

20 x 8 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$28.32 / BUNDLE
IN STOCK Ship long and narrow items efficiently with our 28x10x10 ECT-32 kraft corrugated boxes. Wide openings along the length make packing wine bottles, umbrellas, and carpet rolls fast and easy. Sold in bundles of 25 flat-packed cartons for maximum freight efficiency and storage savings.
Boxes - Corrugated

28x10x10 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 281010

28 x 10 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$58.49 / BUNDLE
IN STOCK Designed for long, narrow items like wine bottles, umbrellas, and carpet rolls, these 26x12x12 corrugated boxes feature wide length-wise openings for fast packing and loading. ECT-32 kraft construction delivers reliable stacking strength and protection. Sold flat in bundles of 20 for maximum freight efficiency and storage savings.
Boxes - Corrugated

26x12x12 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 261212

26 x 12 x 12 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$53.53 / BUNDLE
IN STOCK Heavy-duty 24 x 14 x 20 corrugated shipping boxes with ECT-32 single wall construction deliver reliable stacking strength for mid-size orders. Ships flat in bundles of 15 to maximize warehouse storage and reduce freight costs. The trusted choice for fulfillment centers and warehouse operations.
Boxes - Corrugated

24x14x20 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 241420

24 x 14 x 20 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$58.93 / BUNDLE
IN STOCK Industrial-grade 24x14x18 corrugated shipping boxes made from ECT-32 kraft material designed for reliable performance in high-volume fulfillment operations. Each bundle contains 10 boxes, offering cost-efficient packaging solutions for warehouses and distribution centers. Fully recyclable kraft construction meets sustainability standards while maintaining structural integrity.
Boxes - Corrugated

24x14x18 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 241418

24 x 14 x 18 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$35.02 / BUNDLE
IN STOCK ECT-48 rated double wall corrugated cartons deliver maximum protection and stacking performance for demanding warehouse environments. These 24 x 14 x 14
Boxes - Corrugated

24x14x14 ECT-48 Kraft Double Wall Corrugated Shipping Boxes 10-Pack

PN: HD241414DW

24 x 14 x 14 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$72.46 / BUNDLE
IN STOCK Heavy-duty ECT-48 kraft double wall corrugated boxes designed for maximum protection and stacking performance. 24
Boxes - Corrugated

24x14x12 ECT-48 Kraft Double Wall Corrugated Shipping Boxes 15-Pack

PN: HD241412DW

24 x 14 x 12 in D.W./ECT-48 Corrugated 15 PER BUNDLE
$116.44 / BUNDLE
IN STOCK Dependable 24x14x12 corrugated shipping boxes built from ECT-32 kraft material for reliable stacking and protection. Each bundle includes 20 boxes–ideal for medium-volume fulfillment operations. Recyclable kraft construction reduces waste while maximizing storage efficiency.
Boxes - Corrugated

24x14x12 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 241412

24 x 14 x 12 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$55.30 / BUNDLE
IN STOCK Standard-strength ECT-32 kraft corrugated boxes in 22x18x18
Boxes - Corrugated

22x18x18 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 221818

22 x 18 x 18 in ECT-32 Corrugated 15 PER BUNDLE
$97.67 / BUNDLE
IN STOCK ECT-32 single-wall corrugated boxes measuring 22
Boxes - Corrugated

22x16x14 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 221614

22 x 16 x 14 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$82.63 / BUNDLE
IN STOCK Heavy-duty ECT-48 corrugated shipping cartons designed for warehouse and fulfillment operations. 20
Boxes - Corrugated

20x18x12 ECT-48 Double Wall Corrugated Shipping Boxes w/ Hand Holes 10-Pack

PN: HD201812DWHH

20 x 18 x 12 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$69.58 / BUNDLE
IN STOCK ECT-32 kraft corrugated cube boxes sized 19
Boxes - Corrugated

19x19x19 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 191919

19 x 19 x 19 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$40.72 / BUNDLE
IN STOCK Heavy-duty 16x16x22 corrugated shipping boxes built for demanding warehouse operations. ECT-32 single wall kraft construction delivers proven stacking strength and freight efficiency. Sold as convenient 20-box bundles to maximize your packaging volume savings.
Boxes - Corrugated

16x16x22 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 161622

16 x 16 x 22 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$113.65 / BUNDLE
IN STOCK Ship tall items efficiently with our 14 x 14 x 24
Boxes - Corrugated

14x14x24 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 141424

14 x 14 x 24 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$43.04 / BUNDLE
IN STOCK Ship tall items efficiently with these 8x8x30 corrugated boxes made from ECT-32 kraft single-wall corrugated. End-loading design for fast packing. Sold as bundles of 25 boxes, shipped flat to maximize freight efficiency and storage space.
Boxes - Corrugated

8x8x30 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 8830

8 x 8 x 30 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$44.28 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes engineered for reliable performance in high-volume fulfillment operations. These 20x18x20 shipping cartons deliver consistent stacking strength and freight efficiency. Sold as a bundle of 10 recyclable cardboard boxes.
Boxes - Corrugated

20x18x20 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 201820

20 x 18 x 20 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$49.37 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 18x18x20
Boxes - Corrugated

18x18x20 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 181820

18 x 18 x 20 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$56.16 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes designed for tall, narrow items like trophies, fishing rods, and shelving. End-loading design for fast packing and sealing. Sold flat in bundles of 25–cuts freight costs and storage space versus mailing tubes.
Boxes - Corrugated

6x6x32 ECT-32 Kraft Single Wall Tall Corrugated Shipping Boxes 25-Pack

PN: 6632

6 x 6 x 32 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$78.63 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated boxes built for high-volume fulfillment operations. These 26x13x8 shipping cartons deliver reliable stacking performance and freight efficiency in bundles of 20. Recyclable cardboard construction reduces waste while meeting industrial shipping standards.
Boxes - Corrugated

26x13x8 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 26138

26 x 13 x 8 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$48.12 / BUNDLE
IN STOCK Heavy-duty 24x15x12 kraft corrugated boxes built from ECT-32 single-wall material for reliable industrial shipping and storage. Each bundle includes 20 boxes, delivering volume savings and consistent strength across your fulfillment operation. Fully recyclable kraft construction reduces waste while maximizing stack performance.
Boxes - Corrugated

24x15x12 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 241512

24 x 15 x 12 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$61.09 / BUNDLE
IN STOCK Heavy-duty 24x15x10 corrugated boxes manufactured from ECT-32 kraft material for reliable legal file storage and economical shipping. Foldable flaps enable fast packing and space-efficient stacking. Sold as a 20-box bundle to maximize cost savings per unit.
Boxes - Corrugated

24x15x10 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 241510

24 x 15 x 10 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$54.97 / BUNDLE
IN STOCK Heavy-duty ECT-32 single-wall corrugated boxes sized 23
Boxes - Corrugated

23x16x18 5/8 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 231618

23 x 16 x 18 5/8 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$53.82 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 24
Boxes - Corrugated

24x15x15 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 241515

24 x 15 x 15 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$67.31 / BUNDLE
IN STOCK Heavy-duty 9x9x30
Boxes - Corrugated

9x9x30 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 9930

9 x 9 x 30 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$52.49 / BUNDLE
IN STOCK Ship tall products efficiently with these 15x15x24
Boxes - Corrugated

15x15x24 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 151524

15 x 15 x 24 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$83.93 / BUNDLE
IN STOCK Ship long and narrow items efficiently with these 36x4x4 corrugated cartons. ECT-32 kraft single-wall construction provides reliable protection for wine bottles, umbrellas, carpet rolls, and similar products. Pre-bundled in quantities of 25 boxes, sold flat to maximize freight efficiency and minimize storage footprint.
Boxes - Corrugated

36x4x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 3644

36 x 4 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$51.19 / 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 ->