Corrugated Boxes

IN STOCK 10x10x48 ECT-32 Kraft Telescoping Inner Box - Adjustable Tall Carton, 20-Pack
Boxes - Corrugated

10x10x48 ECT-32 Kraft Telescoping Inner Box 20-Pack

PN: T101048INNER

10 x 10 x 48 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$83.85 / BUNDLE
IN STOCK Industrial-grade 30x30x25 corrugated shipping boxes with ECT-32 single-wall kraft construction deliver reliable stacking strength for high-volume fulfillment operations. Each bundle includes 5 boxes–optimize your freight efficiency and reduce per-unit packaging costs. Fully recyclable kraft material meets sustainability standards.
Boxes - Corrugated

30x30x25 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 5-Pack

PN: 303025

30 x 30 x 25 in ECT-32 Single Wall Corrugated 5 PER BUNDLE
$47.55 / BUNDLE
IN STOCK 10x10x48 ECT-32 Kraft Corrugated Boxes - Bundle of 20
Boxes - Corrugated

10x10x48 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 101048

10 x 10 x 48 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$74.49 / BUNDLE
IN STOCK Heavy-duty 8x8x50 corrugated boxes built from ECT-32 kraft material for shipping tall, fragile items like trophies, shelving units, and fishing rods. End-loading design enables fast, secure sealing. Sold as a bundle of 20 boxes–ships flat to maximize freight efficiency and storage space.
Boxes - Corrugated

8x8x50 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 8850

8 x 8 x 50 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$130.23 / BUNDLE
IN STOCK Heavy-duty 36x5x48 side loading boxes with ECT-44 single wall corrugated construction deliver reliable stacking performance and freight efficiency. Kraft material ships and stores flat, reducing warehouse footprint by up to 70%. Bundle of 5 boxes–the industry standard for fulfillment operations managing high-volume SKUs.
Boxes - Corrugated

36x5x48 ECT-44 Kraft Side Loading Boxes 5-Pack

PN: 36548FOL

36 x 5 x 48 in ECT-44 Single Wall Corrugated 5 PER BUNDLE
$73.40 / BUNDLE
IN STOCK Heavy-duty 22x22x36 corrugated boxes built with ECT-32 single wall kraft material for superior stacking strength and freight efficiency. End-loading design enables fast packing and sealing of tall items including shelving, trophies, and fishing rods. Sold flat in convenient bundles of 10 to maximize warehouse storage.
Boxes - Corrugated

22x22x36 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 10-Pack

PN: 222236

22 x 22 x 36 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$74.27 / BUNDLE
IN STOCK Adjustable two-piece telescoping outer boxes built for tall and irregularly shaped shipments. 18.5×18.5×40
Boxes - Corrugated

18.5x18.5x40 ECT-32 Kraft Telescoping Outer Boxes 10-Pack

PN: T181840OUTER

18 1/2 x 18 1/2 x 40 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$145.01 / BUNDLE
IN STOCK 10.5x10.5x48
Boxes - Corrugated

10.5x10.5x48 ECT-32 Kraft Telescoping Outer Box 20-Pack

PN: T101048OUTER

10 1/2 x 10 1/2 x 48 in ECT-32 Corrugated 20 PER BUNDLE
$111.20 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping cartons designed for reliable performance in high-volume fulfillment operations. These 36x24x18 boxes deliver proven stacking strength and freight efficiency, sold in bundles of 10 for bulk cost savings. Ideal for warehouse managers seeking dependable, recyclable corrugated packaging solutions.
Boxes - Corrugated

36x24x18 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 362418

36 x 24 x 18 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$104.48 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 30
Boxes - Corrugated

30x30x12 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 303012

30 x 30 x 12 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$89.58 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 48x12x12
Boxes - Corrugated

48x12x12 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 481212

48 x 12 x 12 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$43.59 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 48x12x6 corrugated boxes. ECT-32 kraft construction delivers reliable stacking strength and crush resistance. Sold in bundles of 20 and shipped flat to maximize freight efficiency and storage space.
Boxes - Corrugated

48x12x6 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack

PN: 48126

48 x 12 x 6 in ECT-32 Single Wall Corrugated 20 PER BUNDLE
$111.00 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 40x20x20
Boxes - Corrugated

40x20x20 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 402020

40 x 20 x 20 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$121.05 / BUNDLE
IN STOCK Heavy-duty 36x24x24 corrugated shipping boxes built from ECT-32 kraft material for reliable protection and optimal stacking performance. Each bundle includes 5 boxes, reducing per-unit costs for warehouse managers and fulfillment operations. Recyclable construction supports sustainable logistics without sacrificing strength.
Boxes - Corrugated

36x24x24 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 5-Pack

PN: 362424

36 x 24 x 24 in ECT-32 Single Wall Corrugated 5 PER BUNDLE
$41.46 / BUNDLE
IN STOCK ECT-32 single wall corrugated boxes in 36x24x12
Boxes - Corrugated

36x24x12 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 10-Pack

PN: 362412

36 x 24 x 12 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$62.45 / BUNDLE
IN STOCK Heavy-duty 36x24x10 corrugated boxes with ECT-32 kraft construction deliver proven stacking performance and freight efficiency for demanding warehouse environments. Perfect for mid-size product shipments, these single-wall cartons maximize cube utilization while maintaining structural integrity. Sold as a bundle of 10–reduce cost per unit while ensuring consistent packaging across your fulfillment operation.
Boxes - Corrugated

36x24x10 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 10-Pack

PN: 362410

36 x 24 x 10 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$98.19 / BUNDLE
IN STOCK Heavy-duty ECT-48 kraft double wall cartons engineered for maximum protection and stacking performance. 30
Boxes - Corrugated

30x30x12 ECT-48 Kraft Double Wall Corrugated Boxes 5-Pack

PN: HD303012DW

30 x 30 x 12 in ECT-48 Double Wall Corrugated 5 PER BUNDLE
$78.74 / BUNDLE
IN STOCK Heavy-duty 30x30x10 corrugated boxes built from ECT-32 kraft material deliver consistent stacking performance for high-volume fulfillment operations. Each 15-pack bundle maximizes freight efficiency while reducing per-unit costs. Ideal for warehouses and 3PLs shipping mid-size products with confidence.
Boxes - Corrugated

30x30x10 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 303010

30 x 30 x 10 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$112.42 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 30
Boxes - Corrugated

30x30x8 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 30308

30 x 30 x 8 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$66.90 / BUNDLE
IN STOCK These 30x30x6 corrugated cartons feature ECT-32 kraft construction and ship flat to maximize warehouse storage efficiency. Ideal for apparel, books, picture frames, and artwork requiring shallow-depth packaging. Bundle of 15 flat boxes reduces per-unit cost and freight overhead.
Boxes - Corrugated

30x30x6 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 30306

30 x 30 x 6 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$113.30 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner cartons sized 20x20x40 inches–perfect for tall, oversized, and irregularly shaped shipments. Manufactured from durable ECT-32 kraft corrugated with full overlap bottom reinforcement for maximum stacking strength. Sold as bundle of 10; pair with T202040OUTER to complete your shipping set.
Boxes - Corrugated

20x20x40 ECT-32 Kraft Telescoping Inner Boxes 10-Pack

PN: T202040INNER

20 x 20 x 40 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$94.04 / BUNDLE
IN STOCK Adjustable two-piece telescoping inner boxes sized 12x12x48
Boxes - Corrugated

12x12x48 ECT-32 Kraft Telescoping Inner Boxes 15-Pack

PN: T121248INNER

12 x 12 x 48 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$105.73 / BUNDLE
IN STOCK Heavy-duty ECT-48 kraft double wall boxes deliver superior protection and stacking performance for demanding warehouse operations. These 40x20x20 corrugated cartons combine maximum crush resistance with efficient flat-ship storage. Bundle of 5 units reduces your per-box cost and freight overhead.
Boxes - Corrugated

40x20x20 ECT-48 Double Wall Corrugated Boxes 5-Pack

PN: HD402020DW

40 x 20 x 20 in ECT-48 Double Wall Corrugated 5 PER BUNDLE
$83.72 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 36
Boxes - Corrugated

36x24x20 ECT-32 Kraft Corrugated Shipping Boxes 5-Pack

PN: 362420

36 x 24 x 20 in ECT-32 Single Wall Corrugated 5 PER BUNDLE
$38.36 / BUNDLE
IN STOCK ECT-48 double wall corrugated boxes built for high-performance industrial shipping. 36
Boxes - Corrugated

36x24x12 ECT-48 Double Wall Corrugated Shipping Boxes 5-Pack

PN: HD362412DW

36 x 24 x 12 in ECT-48 Double Wall Corrugated 5 PER BUNDLE
$57.98 / BUNDLE
IN STOCK ECT-48 heavy-duty double wall corrugated boxes built for demanding warehouse and fulfillment operations. These 36x24x8 kraft cartons deliver maximum stacking performance and freight efficiency while shipping flat to minimize storage overhead. Bundle of 10 units.
Boxes - Corrugated

36x24x8 ECT-48 Kraft Double Wall Corrugated Boxes 10-Pack

PN: HD36248DW

36 x 24 x 8 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$153.19 / BUNDLE
IN STOCK ECT-32 kraft corrugated shipping cartons sized 36
Boxes - Corrugated

36x24x8 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 36248

36 x 24 x 8 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$81.50 / BUNDLE
IN STOCK Ship smarter with 36x24x6 ECT-32 kraft corrugated boxes–engineered for shallow products like apparel, books, artwork, and frames. Ships flat to maximize your warehouse storage and reduce freight costs. Bundle of 10 boxes.
Boxes - Corrugated

36x24x6 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 36246

36 x 24 x 6 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$55.14 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes in 36x24x4
Boxes - Corrugated

36x24x4 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 36244

36 x 24 x 4 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$54.87 / BUNDLE
IN STOCK ECT-48 heavy-duty double wall corrugated boxes designed for demanding warehouse and fulfillment operations. 30
Boxes - Corrugated

30x30x16 ECT-48 Double Wall Corrugated Boxes 5-Pack

PN: HD303016DW

30 x 30 x 16 in ECT-48 Double Wall Corrugated 5 PER BUNDLE
$83.58 / BUNDLE
IN STOCK Heavy-duty 30
Boxes - Corrugated

30x30x16 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 303016

30 x 30 x 16 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$79.28 / BUNDLE
IN STOCK Professional-grade 24 x 24 x 36
Boxes - Corrugated

24x24x36 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 5-Pack

PN: 242436

24 x 24 x 36 in ECT-32 Single Wall Corrugated 5 PER BUNDLE
$47.80 / BUNDLE
IN STOCK Ship and store efficiently with these 14x4x52 side loading corrugated boxes featuring ECT-32 single-wall construction. Full overlap (FOL) design ships flat to maximize warehouse space. Bundle of 15 boxes reduces per-unit cost and streamlines your fulfillment operation.
Boxes - Corrugated

14x4x52 ECT-32 Full Overlap FOL Side Loading Boxes 15-Pack

PN: 14452FOL

14 x 4 x 52 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$106.86 / BUNDLE
IN STOCK ECT-32 kraft corrugated boxes sized 12
Boxes - Corrugated

12x12x48 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack

PN: 121248

12 x 12 x 48 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$89.30 / BUNDLE
IN STOCK ECT-32 rated 8x4x52
Boxes - Corrugated

8x4x52 ECT-32 Kraft Full Overlap FOL Side Loading Box 15-Pack

PN: 8452FOL

8 x 4 x 52 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$66.07 / BUNDLE
IN STOCK Industrial-grade 36x24x18 double wall corrugated cartons rated ECT-48 kraft for maximum protection and stacking performance. Built for high-volume shipping, these heavy-duty boxes arrive flat in bundles of 5, reducing your storage footprint and freight costs. Trust tested construction that keeps shipments secure every time.
Boxes - Corrugated

36x24x18 ECT-48 Double Wall Corrugated Boxes 5-Pack

PN: HD362418DW

36 x 24 x 18 in ECT-48 Double Wall Corrugated 5 PER BUNDLE
$102.63 / BUNDLE
IN STOCK Adjustable two-piece telescoping outer boxes sized 20.5
Boxes - Corrugated

20.5x20.5x40 ECT-32 Kraft Telescoping Outer Boxes 10-Pack

PN: T202040OUTER

20 1/2 x 20 1/2 x 40 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$105.43 / BUNDLE
IN STOCK Ship tall items with confidence using these 20×20×40
Boxes - Corrugated

20x20x40 ECT-32 Kraft Corrugated Heavy Duty Shipping Boxes 10-Pack

PN: 202040

20 x 20 x 40 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$97.48 / BUNDLE
IN STOCK Ship tall and irregularly shaped items with confidence using these ECT-32 kraft telescoping boxes. The adjustable two-piece design eliminates wasted space while the full overlap bottom delivers superior stacking strength. Bundle of 15 outers–pair with T121248INNER cartons for complete protection.
Boxes - Corrugated

12.5x12.5x48 ECT-32 Kraft Telescoping Corrugated Boxes 15-Pack

PN: T121248OUTER

12 1/2 x 12 1/2 x 48 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$110.74 / BUNDLE
IN STOCK Premium ECT-48 double wall corrugated shipping cartons built for high-performance logistics. 12x12x48
Boxes - Corrugated

12x12x48 ECT-48 Kraft Double Wall Corrugated Boxes 10-Pack

PN: HD121248DW

12 x 12 x 48 in ECT-48 Double Wall Corrugated 10 PER BUNDLE
$111.79 / BUNDLE
IN STOCK ECT-44 single-wall kraft corrugated boxes engineered for side loading operations and maximum freight efficiency. 54x8x28
Boxes - Corrugated

54x8x28 ECT-44 Kraft Side Loading Boxes 5-Pack

PN: HD54828FOL

54 x 8 x 28 in ECT-44 Single Wall Corrugated 5 PER BUNDLE
$124.40 / BUNDLE
IN STOCK Ship long, narrow items efficiently with these 50
Boxes - Corrugated

50x12x12 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 501212

50 x 12 x 12 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$75.90 / BUNDLE
IN STOCK Ship tall items efficiently with our 14x14x48
Boxes - Corrugated

14x14x48 ECT-32 Kraft Corrugated Tall Shipping Boxes 10-Pack

PN: 141448

14 x 14 x 48 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$80.96 / BUNDLE
IN STOCK 10x6x57
Boxes - Corrugated

10x6x57 ECT-32 Telescoping Inner Boxes 15-Pack

PN: T10657INNER

10 x 6 x 57 in ECT-32 Single Wall Corrugated 15 PER BUNDLE
$109.38 / BUNDLE
IN STOCK Tall corrugated boxes measuring 15
Boxes - Corrugated

15x15x48 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 151548

15 x 15 x 48 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$63.73 / BUNDLE
IN STOCK 10.5x6.5x57
Boxes - Corrugated

10.5x6.5x57 ECT-32 Kraft Telescoping Outer Boxes 15-Pack

PN: T10657OUTER

10 1/2 x 6.5 x 57 in ECT-32 Corrugated 15 PER BUNDLE
$117.35 / BUNDLE
IN STOCK Heavy-duty ECT-32 single wall corrugated shipping boxes in standard 32
Boxes - Corrugated

32x32x12 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 323212

32 x 32 x 12 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$114.81 / BUNDLE
IN STOCK Ship smarter with these 32x32x8
Boxes - Corrugated

32x32x8 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack

PN: 32328

32 x 32 x 8 in ECT-32 Single Wall Corrugated 10 PER BUNDLE
$140.69 / BUNDLE

Product Help Request

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

SELECTION EXPERT ADVICE

Wall Strength and Board Grade
MORE INFO
Single-wall corrugated handles most standard shipments, while double and triple-wall construction is built for heavy, sharp-edged, or high-value loads. Matching the board grade to your product weight prevents in-transit damage and avoids the cost of replacing goods that arrive compromised.
Size Selection and Dimensional Weight
MORE INFO
Choosing the right box dimensions for each SKU directly reduces what carriers charge in dimensional weight fees. A properly sized box also means less cushioning material needed to secure your product, which brings down both your material cost and your pack time per order.
RSC vs Specialty Box Styles
MORE INFO
Standard RSC boxes work well for most applications, but specialty styles like flat, cube, multi-depth, and telescoping boxes give you more flexibility for irregular products, retail display setups, and high-volume packing lines where a tighter fit around the product makes a real difference.
Overview

2,244 corrugated boxes from 4 to 36 inches: ECT-32 kraft shipping boxes, white literature mailers and multi-depth cartons in bundles of 10, 25 and 50. Inside dimensions, board grade and bundle size are listed per product, and the same box is often available in several depths. Orders ship from five US regional warehouses; for mixed or recurring orders use the bulk quote path with SKU, quantity and destination ZIP.

Related collections

From lightweight ECT-32 single wall for everyday parcels to heavier grades for dense loads. Every box lists its wall construction and certificate class on the product page.

Buying path

Buy Corrugated Boxes by the specs that change the order

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Larger orders

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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 ->

Sizing & buying guides