Large Cardboard Boxes (18"+)

IN STOCK ECT-32 kraft corrugated boxes sized 20x20x24
Boxes - Corrugated

20x20x24" ECT-32 Kraft Corrugated Boxes - Bundle of 10

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 - Heavy-Duty Tall Shipping, 25/Bundle

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 - Heavy-Duty Shipping, Bundle of 10

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 Multi-Depth Corrugated Boxes ECT-32 Kraft - 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 Double Wall Corrugated Boxes ECT-48 - 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 Double Wall Corrugated Boxes - Heavy-Duty Kraft, Bundle of 10

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 Boxes - Bundle of 20

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 Shipping Boxes — ECT-32 Kraft Corrugated, 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 Shipping Boxes — ECT-32 Kraft Corrugated, 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 Double Wall Corrugated Shipping Boxes, Pack of 10

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 Double Wall Kraft Boxes - Heavy Duty Shipping, Bundle of 10

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 Shipping Boxes — ECT-32 Kraft Corrugated, 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 Shipping Boxes — ECT-32 Kraft Corrugated, 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 Shipping Boxes — ECT-32 Kraft Corrugated, 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 Boxes - Bundle of 15

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 Shipping Boxes — ECT-32 Kraft Corrugated, 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 - Heavy Duty Shipping, Bundle of 10

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 Shipping Boxes — ECT-32 Kraft Corrugated, 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 Boxes - Bundle of 25

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 Boxes - Easy Pack, 25-Bundle

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 Shipping Boxes — ECT-32 Kraft Corrugated, 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 Shipping Boxes - ECT-32 Kraft Corrugated, 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 Double Wall ECT-51 Corrugated Boxes - Heavy-Duty Shipping, Bundle of 5

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 - Bundle of 15

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 Shipping Boxes — ECT-32 Kraft Corrugated, 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 Shipping Boxes — ECT-32 Kraft Corrugated, 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 Shipping Boxes — ECT-32 Kraft Corrugated, 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 - Bundle of 15

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 Boxes - Bundle of 10

PN: MDHD262020

26 x 20 x 20 in ECT-44 Single Wall Corrugated 10 PER BUNDLE
$71.94 / BUNDLE
IN STOCK Heavy-duty ECT-32 kraft corrugated shipping cartons in 26
Boxes - Corrugated

26x20x20 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 262020

26 x 20 x 20 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$50.47 / BUNDLE
IN STOCK Industrial-grade 26x20x18
Boxes - Corrugated

26x20x18" ECT-32 Kraft Corrugated Boxes - Durable Shipping, Bundle of 10

PN: 262018

26 x 20 x 18 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$49.05 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 26
Boxes - Corrugated

26x20x16 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 262016

26 x 20 x 16 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$45.13 / BUNDLE
IN STOCK Ship and store clothing efficiently with our 26x20x12 ECT-32 kraft corrugated boxes. Each bundle includes 15 boxes engineered for garment protection, with or without hangers. Single-wall construction delivers cost-effective strength and optimal freight utilization for warehouse operations.
Boxes - Corrugated

26x20x12 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 262012

26 x 20 x 12 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$82.22 / BUNDLE
IN STOCK Ship apparel efficiently with these 26x20x10 corrugated cartons manufactured from ECT-32 single wall kraft material. Bundle of 15 boxes provides immediate inventory at volume savings. Engineered for reliable stacking performance and hanger compatibility in garment fulfillment operations.
Boxes - Corrugated

26x20x10 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 262010

26 x 20 x 10 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$77.04 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes engineered for garment shipping and storage. 26
Boxes - Corrugated

26x20x8 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 26208

26 x 20 x 8 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$90.13 / BUNDLE
IN STOCK Ship lightweight products efficiently with these 26x20x6 ECT-32 kraft corrugated boxes. The shallow 6
Boxes - Corrugated

26x20x6 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 26206

26 x 20 x 6 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$88.99 / BUNDLE
IN STOCK Ship shallow products efficiently with these 26x20x4 ECT-32 kraft corrugated boxes. Perfect for apparel, books, artwork, and frames. Bundle of 20 flat boxes reduces storage footprint and freight expenses while maintaining superior stacking strength.
Boxes - Corrugated

26x20x4 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 26204

26 x 20 x 4 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$70.12 / BUNDLE
IN STOCK ECT-44 kraft corrugated side loading boxes designed for high-volume fulfillment operations. 36
Boxes - Corrugated

36x8x30 ECT-44 Kraft Side Loading Boxes - Bundle of 10

PN: HD36830FOL

36 x 8 x 30 in ECT-44 Single Wall Corrugated 10 PER BUNDLE
$124.47 / BUNDLE
IN STOCK Maximize warehouse efficiency with these 36x5x36 side loading corrugated boxes featuring full overlap (FOL) flaps for enhanced product protection. Constructed from ECT-32 kraft single-wall material with 3.8 cubic foot capacity, this bundle of 20 ships flat to reduce storage footprint and freight costs–the smart choice for fulfillment directors managing high-volume operations.
Boxes - Corrugated

36x5x36 ECT-32 Side Loading Boxes Full Overlap - Bundle of 20

PN: 36536FOL

36 x 5 x 36 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$110.33 / BUNDLE
IN STOCK Heavy-duty ECT-32 single-wall corrugated boxes sized 29
Boxes - Corrugated

29x17x20 Shipping Boxes — ECT-32 Kraft Corrugated, 10-Pack

PN: 291720

29 x 17 x 20 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$52.93 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 29
Boxes - Corrugated

29x17x15 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 291715

29 x 17 x 15 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$64.52 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes designed for apparel distribution. 29
Boxes - Corrugated

29x17x7 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 29177

29 x 17 x 7 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$103.11 / BUNDLE
IN STOCK ECT-48 double wall kraft corrugated boxes engineered for maximum protection and stacking performance. 28
Boxes - Corrugated

28x18x18 ECT-48 Double Wall Kraft Boxes - Heavy-Duty Shipping, Bundle of 10

PN: HD281818DW

28 x 18 x 18 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$115.64 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 28
Boxes - Corrugated

28x18x12 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 281812

28 x 18 x 12 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$56.89 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes in 28
Boxes - Corrugated

28x18x10 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 281810

28 x 18 x 10 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$73.03 / BUNDLE
IN STOCK Ship smarter with 28x18x6 corrugated boxes designed for shallow products that maximize pallet density and reduce freight costs. ECT-32 single-wall kraft construction delivers reliable protection while shipping flat saves 40% storage space. Bundle of 20 ready to deploy.
Boxes - Corrugated

28x18x6 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 28186

28 x 18 x 6 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$110.45 / BUNDLE
IN STOCK ECT-48 heavy-duty double wall corrugated boxes designed for demanding warehouse and fulfillment operations. 26x20x20
Boxes - Corrugated

26x20x20 ECT-48 Double Wall Corrugated Boxes - Heavy Duty Kraft, Bundle of 10

PN: HD262020DW

26 x 20 x 20 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$80.59 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes sized 26
Boxes - Corrugated

26x20x14 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 262014

26 x 20 x 14 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$103.34 / 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 ->