Large Cardboard Boxes (18"+)

IN STOCK Heavy-duty ECT-32 kraft corrugated boxes built for high-volume fulfillment operations. Each 22x22x20
Boxes - Corrugated

22x22x20 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 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 10-Pack

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

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 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 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 ECT-32 Kraft Corrugated Shipping Boxes 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 ECT-32 Kraft Corrugated Shipping Boxes 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 ECT-32 Kraft Corrugated Shipping Boxes 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 Heavy Duty Double Wall Corrugated Shipping Box 15-Pack

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

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 Corrugated Shipping Boxes with Hand Holes 10-Pack

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 10-Pack

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 Shipping Boxes 20-Pack

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 Kraft Heavy-Duty Corrugated Shipping Boxes 10-Pack

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 ECT-32 Kraft Multi-Depth Corrugated Shipping Boxes 10-Pack

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 Shipping Boxes 10-Pack

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 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 22228

22 x 22 x 8 in ECT-32 Corrugated 15 PER BUNDLE
$54.14 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 20x20x24
Boxes - Corrugated

20x20x24 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 202024

20 x 20 x 24 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$48.05 / BUNDLE
IN STOCK Ship tall items safely with our 4x4x40 ECT-32 kraft corrugated boxes–ideal for trophies, shelving, rods, and vertical freight. Heavy-duty single-wall construction rated for stacking. Sold flat in bundles of 25 for maximum storage efficiency and cost savings.
Boxes - Corrugated

4x4x40 ECT-32 Kraft Corrugated Boxes 25-Pack

PN: 4440

4 x 4 x 40 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$49.59 / BUNDLE
IN STOCK ECT-48 double wall corrugated cartons engineered for maximum protection and stacking performance in high-volume fulfillment operations. Each bundle of 10 kraft boxes ships flat, reducing storage footprint and freight costs. Superior burst strength handles demanding warehouse environments.
Boxes - Corrugated

24x20x20 ECT-48 Double Wall Corrugated Boxes 10-Pack

PN: HD242020DW

24 x 20 x 20 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$78.61 / BUNDLE
IN STOCK Reduce inventory complexity with pre-scored 24x13x31 multi-depth corrugated boxes that adjust from full to half-height–no tools required. ECT-32 kraft construction delivers reliable strength for medium and large shipments. Save valuable warehouse space while maintaining consistent case economics.
Boxes - Corrugated

24x13x31 ECT-32 Kraft Multi-Depth Corrugated Shipping Boxes 10-Pack

PN: MD241331

24 x 13 x 31 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$64.62 / BUNDLE
IN STOCK Heavy-duty 22x22x16 double wall corrugated boxes with ECT-48 rating deliver superior stacking performance and freight efficiency for high-volume warehouses. Each bundle contains 10 kraft boxes that ship flat, reducing storage footprint by up to 90%. Perfect for e-commerce fulfillment, manufacturing, and 3PL operations requiring reliable, stackable cardboard shipping containers.
Boxes - Corrugated

22x22x16 ECT-48 Double Wall Corrugated Shipping Boxes 10-Pack

PN: HD222216DW

22 x 22 x 16 in D.W./ECT-48 Corrugated 10 PER BUNDLE
$105.69 / BUNDLE
IN STOCK Heavy-duty ECT-48 double wall corrugated boxes engineered for maximum protection and stacking performance. These 22x22x12 kraft cartons deliver superior crush resistance and freight efficiency–ship flat in bundles of 10 to reduce storage and logistics costs.
Boxes - Corrugated

22x22x12 ECT-48 Kraft Heavy-Duty Double Wall Corrugated Shipping Boxes 10-Pack

PN: HD222212DW

22 x 22 x 12 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$102.90 / BUNDLE
IN STOCK Ship tall items efficiently with these 14x14x30 ECT-32 kraft corrugated boxes. End-loading design enables fast packing and sealing. Sold as a bundle of 20 boxes, flat-packed for minimal freight costs and warehouse space.
Boxes - Corrugated

14x14x30 ECT-32 Kraft Corrugated Tall Shipping Boxes 20-Pack

PN: 141430

14 x 14 x 30 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$87.24 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes designed for tall, rigid items like shelving, fishing rods, and trophies. End-loading design ensures easy insertion and secure sealing. Bundle of 25 ships flat for maximum freight efficiency and volume savings.
Boxes - Corrugated

8x8x36 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 8836

8 x 8 x 36 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$61.40 / BUNDLE
IN STOCK Heavy-duty 6x6x38 tall corrugated boxes built with ECT-32 kraft material for secure shipping of long items like fishing rods, trophies, and shelving units. End-loading design enables fast, efficient packing. Sold flat in bundles of 25 for maximum freight efficiency and cost savings.
Boxes - Corrugated

6x6x38 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 6638

6 x 6 x 38 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$68.98 / BUNDLE
IN STOCK Industrial-grade ECT-48 double wall corrugated boxes engineered for maximum protection and stacking performance. These 22x22x22
Boxes - Corrugated

22x22x22 ECT-48 Heavy Duty Double Wall Corrugated Shipping Boxes 10-Pack

PN: HD222222DW

22 x 22 x 22 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$99.40 / BUNDLE
IN STOCK Professional-grade 20x20x24 double wall kraft corrugated boxes with ECT-48 strength rating–built to handle heavy loads in warehouses and fulfillment centers. Ship and store flat to reduce freight costs and storage footprint. Bundle of 10 boxes per pack.
Boxes - Corrugated

20x20x24 ECT-48 Kraft Double Wall Corrugated Boxes 10-Pack

PN: HD202024DW

20 x 20 x 24 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$130.80 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes engineered for high-performance shipping and storage. This 30x15x15
Boxes - Corrugated

30x15x15 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 15-Pack

PN: 301515

30 x 15 x 15 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$58.30 / BUNDLE
IN STOCK ECT-32 kraft corrugated cartons sized 28
Boxes - Corrugated

28x17x5 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 28175

28 x 17 x 5 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$41.88 / BUNDLE
IN STOCK Reliable ECT-32 single-wall corrugated boxes sized 20
Boxes - Corrugated

20x20x25 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 202025

20 x 20 x 25 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$49.50 / BUNDLE
IN STOCK Ship long, irregular items efficiently with our 15x15x30
Boxes - Corrugated

15x15x30 ECT-32 Tall Corrugated Shipping Boxes 15-Pack

PN: 151530

15 x 15 x 30 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$54.58 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 5
Boxes - Corrugated

5x5x40 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 5540

5 x 5 x 40 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$75.30 / BUNDLE
IN STOCK Industrial-grade 30x15x15 double wall corrugated shipping boxes with ECT-48 strength rating–built for high-volume fulfillment and demanding stacking environments. Ships flat to maximize warehouse efficiency and reduce freight costs. Bundle of 10 kraft cardboard boxes ready to assemble.
Boxes - Corrugated

30x15x15 ECT-48 Double Wall Corrugated Boxes 10-Pack

PN: HD301515DW

30 x 15 x 15 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$103.81 / BUNDLE
IN STOCK Tall 9x9x36
Boxes - Corrugated

9x9x36 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 9936

9 x 9 x 36 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$84.97 / BUNDLE
IN STOCK Ship shallow products with confidence using these 29x17x3
Boxes - Corrugated

29x17x3 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 29173

29 x 17 x 3 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$112.99 / BUNDLE
IN STOCK ECT-32 kraft corrugated long boxes designed for narrow, elongated items like wine bottles, umbrellas, and carpet rolls. Wide openings along the 40
Boxes - Corrugated

40x6x6 ECT-32 Kraft Corrugated Long Shipping Boxes 25-Pack

PN: 4066

40 x 6 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$91.66 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 36x10x10 ECT-32 kraft corrugated boxes featuring wide length openings for fast packing. Engineered for wine bottles, umbrellas, carpet rolls, and similar products. Sold flat in bundles of 20 to maximize freight efficiency and storage.
Boxes - Corrugated

36x10x10 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 361010

36 x 10 x 10 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$53.39 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes designed specifically for long, narrow items like wine bottles, umbrellas, and carpet rolls. The 36x10x6
Boxes - Corrugated

36x10x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack

PN: 36106

36 x 10 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$93.76 / BUNDLE
IN STOCK Consolidate multiple piece shipments into one protective container with these ECT-51 double wall corrugated boxes (30
Boxes - Corrugated

30x17x17 ECT-51 Double Wall Corrugated Boxes 5-Pack

PN: AF301717

30 x 17 x 17 in ECT-51 Double Wall Corrugated 5 PER BUNDLE
$40.06 / BUNDLE
IN STOCK Ship and store apparel efficiently with these ECT-32 kraft corrugated boxes sized 29
Boxes - Corrugated

29x17x12 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 291712

29 x 17 x 12 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$60.35 / BUNDLE
IN STOCK Sturdy ECT-32 single wall kraft corrugated boxes in 29
Boxes - Corrugated

29x17x9 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 29179

29 x 17 x 9 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$51.01 / BUNDLE
IN STOCK Ship apparel efficiently with these ECT-32 kraft corrugated boxes sized 29
Boxes - Corrugated

29x17x5 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 29175

29 x 17 x 5 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$44.91 / BUNDLE
IN STOCK ECT-32 single-wall kraft corrugated boxes sized 28
Boxes - Corrugated

28x18x18 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 10-Pack

PN: 281818

28 x 18 x 18 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$41.45 / BUNDLE
IN STOCK Ship smarter with these 28x18x8
Boxes - Corrugated

28x18x8 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 28188

28 x 18 x 8 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$68.33 / BUNDLE
IN STOCK Heavy-duty ECT-44 corrugated cartons with pre-scored multi-depth design–cut to size and eliminate wasted space that triggers dimensional weight surcharges. 40% stronger than standard shipping containers. Sold as bundle of 10.
Boxes - Corrugated

26x20x20 ECT-44 Heavy-Duty Multi-Depth Corrugated Shipping Boxes 10-Pack

PN: MDHD262020

26 x 20 x 20 in ECT-44 Single Wall Corrugated 10 PER BUNDLE
$71.94 / 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 ->