Large Cardboard Boxes (18"+)

IN STOCK Heavy-duty ECT-32-B kraft corrugated boxes sized 20
Boxes - Corrugated

20x16x9 ECT-32-B Kraft Corrugated Shipping Boxes - Bundle of 25

PN: 20169

20 x 16 x 9 in ECT-32-B Corrugated 25 PER BUNDLE
$99.95 / BUNDLE
IN STOCK ECT-32 single wall corrugated boxes in 18
Boxes - Corrugated

18x18x12 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 181812

18 x 18 x 12 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$51.90 / BUNDLE
IN STOCK ECT-32 kraft corrugated cartons engineered for shallow-product shipping. At 18
Boxes - Corrugated

18x18x2 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 18182

18 x 18 x 2 in ECT-32 Corrugated 25 PER BUNDLE
$90.07 / BUNDLE
IN STOCK ECT-32 kraft corrugated long boxes designed for efficient packing of wine bottles, umbrellas, carpet rolls, and other elongated items. Wide opening along the 30
Boxes - Corrugated

30x6x6 ECT-32 Kraft Corrugated Long Boxes - 25 Pack Bundle

PN: 3066

30 x 6 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$36.76 / BUNDLE
IN STOCK Ship long, narrow items efficiently with 26x10x10 ECT-32 kraft corrugated boxes featuring long-side openings for fast packing. Durable single-wall construction rated for stacking and freight handling. Sold flat in convenient 25-box bundles–maximize warehouse space while minimizing per-unit costs.
Boxes - Corrugated

26x10x10 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 261010

26 x 10 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$53.09 / BUNDLE
IN STOCK Ship smarter with 24x12x18
Boxes - Corrugated

24x12x18" ECT-32 Kraft Corrugated Boxes - Single Wall, Bundle of 20

PN: 241218

24 x 12 x 18 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$95.96 / BUNDLE
IN STOCK ECT-32 rated kraft corrugated boxes in 24x12x16
Boxes - Corrugated

24x12x16 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 241216

24 x 12 x 16 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$95.26 / BUNDLE
IN STOCK ECT-32 white corrugated boxes in 24x12x12 dimensions deliver professional presentation with durable single-wall construction. Bundle of 25 boxes ideal for retail-ready shipments where labeling and branding visibility matter. Strong stacking performance reduces freight damage and maximizes warehouse efficiency.
Boxes - Corrugated

24x12x12 ECT-32 White Corrugated Boxes - 25 Count Bundle

PN: 241212W

24 x 12 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$67.25 / BUNDLE
IN STOCK Reduce your carton inventory and parcel shipping costs with these 24x12x12 pre-scored multi-depth corrugated boxes. Fold to your desired height without a carton sizer–one box replaces multiple sizes. Made from durable ECT-32 kraft corrugated.
Boxes - Corrugated

24x12x12 Shipping Boxes - Multi-Depth ECT-32 Kraft Corrugated, 25-Pack

PN: MD241212

24 x 12 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$63.95 / BUNDLE
IN STOCK ECT-32 single-wall corrugated boxes in 24
Boxes - Corrugated

24x12x10 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 241210

24 x 12 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$54.42 / BUNDLE
IN STOCK Right-size shipments and cut carton SKUs with Packrift's 24x12x6 multi-depth corrugated boxes. Pre-scored kraft cardboard folds to 6
Boxes - Corrugated

24x12x6 Multi-Depth Corrugated Boxes ECT-32 Kraft - Adjustable Sizing, Bundle of 20

PN: MD24126

24 x 12 x 6 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$41.58 / BUNDLE
IN STOCK Ship shallow products efficiently with these 24x12x6 ECT-32 kraft corrugated boxes. Engineered for apparel, books, frames, and artwork with optimal depth-to-strength ratio. Bundle of 20 flat boxes arrives ready to assemble–maximize your warehouse space and reduce freight expense.
Boxes - Corrugated

24x12x6 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 24126

24 x 12 x 6 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$36.84 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 24x12x4
Boxes - Corrugated

24x12x4 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 24124

24 x 12 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$40.27 / BUNDLE
IN STOCK Packrift's 22x14x14 corrugated boxes deliver reliable ECT-32 single-wall strength for high-volume fulfillment operations. Each bundle of 20 kraft cartons maximizes freight efficiency and stackability while cutting per-unit packaging costs. Built for warehouse managers who demand consistent performance without compromise.
Boxes - Corrugated

22x14x14 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 221414

22 x 14 x 14 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$60.52 / BUNDLE
IN STOCK Dependable 22x14x12
Boxes - Corrugated

22x14x12" ECT-32 Kraft Corrugated Boxes - Standard Strength Shipping, 20-Pack

PN: 221412

22 x 14 x 12 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$44.89 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 22x14x10
Boxes - Corrugated

22x14x10 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 221410

22 x 14 x 10 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$47.73 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 22x14x6
Boxes - Corrugated

22x14x6" ECT-32 Kraft Corrugated Boxes - Shallow Depth Shipping, Bundle of 20

PN: 22146

22 x 14 x 6 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$40.66 / BUNDLE
IN STOCK Durable ECT-32 kraft corrugated boxes sized 21
Boxes - Corrugated

21x15x15 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 211515

21 x 15 x 15 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$59.73 / BUNDLE
IN STOCK Industrial-grade 20
Boxes - Corrugated

20x16x16 Shipping Boxes — ECT-32 Kraft Corrugated, 15-Pack

PN: 201616

20 x 16 x 16 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$47.92 / BUNDLE
IN STOCK Pre-scored multi-depth corrugated boxes that fold to your exact size–no carton sizer required. These 20x16x14 ECT-32 kraft boxes eliminate inventory bloat by replacing 3-5 single-depth cartons with one adjustable solution. Bundle of 20 boxes ships ready to use.
Boxes - Corrugated

20x16x14 Multi-Depth Corrugated Boxes ECT-32 Kraft - Bundle of 20

PN: MD201614

20 x 16 x 14 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$57.61 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated boxes engineered for warehouses and fulfillment centers handling mid-weight products. These 20
Boxes - Corrugated

20x16x14 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 201614

20 x 16 x 14 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$54.99 / BUNDLE
IN STOCK Industrial-strength ECT-32 kraft corrugated boxes sized 20
Boxes - Corrugated

20x16x12" ECT-32 Kraft Corrugated Boxes - Bundle of 25

PN: 201612

20 x 16 x 12 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$70.44 / BUNDLE
IN STOCK Heavy-duty ECT-32 kraft corrugated boxes sized 20
Boxes - Corrugated

20x16x10 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 201610

20 x 16 x 10 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$65.58 / BUNDLE
IN STOCK These 20x16x4 shallow-depth corrugated cartons deliver reliable ECT-32 single-wall protection for lightweight to medium-weight items. Ships flat in bundles of 25 to maximize your warehouse space and cut freight costs. Ideal for apparel, books, artwork, and other thin products.
Boxes - Corrugated

20x16x4 ECT-32 Kraft Corrugated Shipping Boxes, Pack of 25

PN: 20164

20 x 16 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$52.66 / BUNDLE
IN STOCK ECT-32 kraft corrugated moving boxes engineered for warehouse efficiency and freight optimization. 18
Boxes - Corrugated

18x18x16 Kraft ECT-32 Deluxe Moving Boxes - 20 Pack

PN: 181816DPB

18 x 18 x 16 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$79.51 / BUNDLE
IN STOCK ECT-32 single wall kraft corrugated shipping boxes in 18
Boxes - Corrugated

18x18x16 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 181816

18 x 18 x 16 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$56.67 / BUNDLE
IN STOCK ECT-32 single wall corrugated boxes sized 18
Boxes - Corrugated

18x18x15 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 181815

18 x 18 x 15 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$69.13 / BUNDLE
IN STOCK Reliable 18x18x14
Boxes - Corrugated

18x18x14" ECT-32 Kraft Corrugated Boxes - Bundle of 20

PN: 181814

18 x 18 x 14 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$63.23 / BUNDLE
IN STOCK Pre-scored multi-depth corrugated boxes that fold to your exact size–eliminate carton sizers and redundant SKUs. ECT-32 kraft construction delivers the right strength for your shipments while cutting parcel service costs. Bundle of 20 boxes ready to ship.
Boxes - Corrugated

18x18x12 Multi-Depth Corrugated Boxes, ECT-32 Kraft, Bundle of 20

PN: MD181812

18 x 18 x 12 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$60.86 / BUNDLE
IN STOCK Heavy-duty 18x18x10 corrugated shipping boxes engineered for demanding warehouse operations. ECT-32 single-wall kraft construction delivers reliable stacking performance and cost-effective volume shipping in convenient bundles of 20. Optimize your fulfillment costs with industrial-grade cardboard boxes built to protect and perform.
Boxes - Corrugated

18x18x10 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 181810

18 x 18 x 10 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$56.40 / BUNDLE
IN STOCK Engineered for high-volume fulfillment operations, these 18x18x8 corrugated boxes deliver ECT-32 single-wall durability in an efficient mid-size format. Perfect for medium-weight products, seasonal storage, and freight optimization. Kraft construction is 100% recyclable–reduce waste while shipping smarter.
Boxes - Corrugated

18x18x8 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 18188

18 x 18 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$65.17 / BUNDLE
IN STOCK Reduce carton inventory and shipping costs with these pre-scored, adjustable 18x18x6 multi-depth corrugated boxes. Fold to 6, 5, 4, 3, or 2-inch heights without a carton sizer. Made from durable ECT-32 kraft corrugated. Sold as a bundle of 20.
Boxes - Corrugated

18x18x6" Multi-Depth Corrugated Boxes ECT-32 Kraft - Adjustable (20-Pack)

PN: MD18186

18 x 18 x 6 in ECT-32 Corrugated 20 PER BUNDLE
$49.55 / BUNDLE
IN STOCK Ship smarter with these 18x18x6 shallow-depth corrugated boxes made from ECT-32 kraft material. Bundle of 20 ships flat to save on storage and freight costs. Ideal for electronics, PC components, and compact products that don't need deep cartons.
Boxes - Corrugated

18x18x6 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 18186

18 x 18 x 6 in ECT-32 Corrugated 20 PER BUNDLE
$43.49 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping boxes engineered for shallow-depth products that demand reliable protection without excess material waste. These 18x18x5 cartons ship flat to maximize storage and freight efficiency–25 boxes per bundle. Ideal for apparel, books, picture frames, artwork, and mirrors.
Boxes - Corrugated

18x18x5 Shipping Boxes - ECT-32 Kraft Corrugated, 25-Pack

PN: 18185

18 x 18 x 5 in ECT-32 Corrugated 25 PER BUNDLE
$92.03 / BUNDLE
IN STOCK Ship smarter with these 18x18x4 shallow depth corrugated boxes manufactured from durable ECT-32 kraft material. Flat design ships compressed to cut storage and freight costs–perfect for apparel, books, artwork, and picture frames. Bundle of 25 boxes.
Boxes - Corrugated

18x18x4 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 18184

18 x 18 x 4 in ECT-32 Corrugated 25 PER BUNDLE
$55.39 / BUNDLE
IN STOCK Eliminate carton sizing complexity with these ECT-32 kraft corrugated boxes featuring multi-depth scoring at 6
Boxes - Corrugated

18x12x6 Shipping Boxes - Multi-Depth ECT-32 Kraft Corrugated, 25-Pack

PN: MD18126

18 x 12 x 6 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$41.78 / BUNDLE
IN STOCK Ship long and narrow items efficiently with these 28x8x8 ECT-32 kraft corrugated boxes. Wide openings along the length reduce packing time and handling errors. Sold flat in bundles of 25 for maximum freight efficiency and storage savings.
Boxes - Corrugated

28x8x8 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 2888

28 x 8 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$40.67 / BUNDLE
IN STOCK Optimize your shallow-product shipping with these 26x10x4 ECT-32 kraft corrugated boxes. The 4-inch depth reduces dimensional weight charges and warehouse footprint. Sold in bundles of 25 and ship flat for maximum storage and freight efficiency.
Boxes - Corrugated

26x10x4 Shipping Boxes — ECT-32 Kraft Corrugated, 25-Pack

PN: 26104

26 x 10 x 4 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$57.28 / BUNDLE
IN STOCK Heavy-duty ECT-48 double wall corrugated boxes with integrated hand holes for ergonomic handling and efficient warehouse operations. 24
Boxes - Corrugated

24x12x12 ECT-48 Double Wall Hand Hole Boxes - 15 Pack

PN: HD241212DWHH

24 x 12 x 12 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$85.89 / BUNDLE
IN STOCK Get superior protection and stacking performance with these ECT-44 heavy-duty corrugated boxes. The 24
Boxes - Corrugated

24x12x12 ECT-44 Heavy-Duty Kraft Corrugated Boxes - Bundle of 25

PN: HD241212

24 x 12 x 12 in ECT-44 Single Wall Corrugated 25 PER BUNDLE
$87.11 / BUNDLE
IN STOCK Ship long, narrow items with confidence using these 24x12x12 ECT-32 kraft corrugated boxes. Each bundle includes 20 boxes with 2.0 cubic foot capacity and wide openings for fast packing. ECT-32 single wall construction delivers reliable stacking performance and freight efficiency for warehouse operations.
Boxes - Corrugated

24x12x12 Shipping Boxes - ECT-32 Kraft Corrugated, 20-Pack

PN: 241212

24 x 12 x 12 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$42.36 / BUNDLE
IN STOCK Heavy-duty ECT-48 double wall corrugated boxes engineered for maximum protection and stacking performance. These 24x12x8 kraft cartons deliver superior compression strength for demanding warehouse and fulfillment operations. Bundle of 15 ships flat–reducing storage footprint and freight costs.
Boxes - Corrugated

24x12x8 ECT-48 Double Wall Corrugated Boxes - Heavy Duty Shipping, Bundle of 15

PN: HD24128DW

24 x 12 x 8 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$84.77 / BUNDLE
IN STOCK Dependable ECT-32 single-wall kraft corrugated boxes in 24
Boxes - Corrugated

24x12x8 ECT-32 Kraft Corrugated Boxes - Standard Strength Shipping, 25-Box Bundle

PN: 24128R

24 x 12 x 8 in ECT-32 Single Wall Corrugated 25 PER BUNDLE
$56.11 / BUNDLE
IN STOCK Professional-grade 22x14x12 double wall corrugated boxes built from ECT-48 kraft material deliver superior stacking performance and transit protection. Each bundle of 15 ships flat, reducing storage footprint and freight costs. Ideal for e-commerce fulfillment, warehouse distribution, and high-volume shipping operations.
Boxes - Corrugated

22x14x12 ECT-48 Double Wall Corrugated Boxes - Heavy Duty Kraft, Bundle of 15

PN: HD221412DW

22 x 14 x 12 in ECT-48 Double Wall Corrugated 15 PER BUNDLE
$86.21 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 22
Boxes - Corrugated

22x14x8 Shipping Boxes — ECT-32 Kraft Corrugated, 20-Pack

PN: 22148

22 x 14 x 8 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$43.85 / BUNDLE
IN STOCK Protect high-value shipments with ECT-48 kraft double wall corrugated boxes engineered for maximum stacking performance and freight efficiency. These 20x16x16 heavy-duty cartons deliver superior puncture and crush resistance. Order in bundles of 10–ships flat to maximize your warehouse space and reduce logistics costs.
Boxes - Corrugated

20x16x16 ECT-48 Double Wall Corrugated Boxes - Heavy Duty Shipping, Bundle of 10

PN: HD201616DW

20 x 16 x 16 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$52.96 / BUNDLE
IN STOCK ECT-48 double wall corrugated shipping boxes designed for warehouse professionals who demand maximum protection and freight efficiency. These 20
Boxes - Corrugated

20x16x12 Double Wall Corrugated Boxes ECT-48 Kraft - 15 Pack Bundle

PN: HD201612DW

20 x 16 x 12 in D.W./ECT-48 Corrugated 15 PER BUNDLE
$111.75 / BUNDLE
IN STOCK Heavy-duty ECT-48 double wall corrugated boxes built for warehouse managers and fulfillment directors who need reliable, stackable shipping protection. These 20
Boxes - Corrugated

20x16x10 Double Wall Corrugated Boxes ECT-48 - Bundle of 15

PN: HD201610DW

20 x 16 x 10 in D.W./ECT-48 Corrugated 15 PER BUNDLE
$113.38 / 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 ->