Large Cardboard Boxes (18"+)
24x12x8 ECT-32 Kraft Corrugated Boxes
PN: 24128R
22x14x12 ECT-48 Kraft Heavy Duty Double Wall Corrugated Shipping Boxes 15-Pack
PN: HD221412DW
22x14x8 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 22148
20x16x16 ECT-48 Double Wall Corrugated Boxes 10-Pack
PN: HD201616DW
20x16x12 ECT-48 Kraft Double Wall Corrugated Shipping Boxes 15-Pack
PN: HD201612DW
20x16x10 ECT-48 Double Wall Corrugated Shipping Boxes 15-Pack
PN: HD201610DW
20x16x8 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack
PN: 20168
20x16x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack
PN: 20166
18x18x18 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 20-Pack
PN: HD1818
18x18x18 ECT-32 White Corrugated Shipping Box Single Wall 20-Pack
PN: 181818W
18x18x18 ECT-32 Multi-Depth Kraft Corrugated Shipping Boxes 20-Pack
PN: MD181818
18x18x18 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 181818
18x18x12 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 25-Pack
PN: HD181812
18x18x10 ECT-48 Kraft Heavy-Duty Double Wall Corrugated Shipping Boxes 15-Pack
PN: HD181810DW
18x18x8 ECT-48 Kraft Heavy Duty Double Wall Corrugated Shipping Boxes 15-Pack
PN: HD18188DW
18x18x6 ECT-48 Kraft Double Wall Corrugated Boxes 15-Pack
PN: HD18186DW
16x16x20 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 161620
13x3x30 ECT-32 Full Overlap FOL Side Loading Boxes 25-Pack
PN: 13330FOL
12x12x24 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack
PN: 121224
6x6x30 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack
PN: 6630
4x4x32 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack
PN: 4432
30x6x24 ECT-44 Kraft Side Loading Boxes 10-Pack
PN: HD30624FOL
24x12x24 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack
PN: 241224
24x12x12 ECT-48 Kraft Heavy-Duty Double Wall Corrugated Shipping Boxes 15-Pack
PN: HD241212DW
20x16x14 ECT-48 Heavy Duty Double Wall Corrugated Shipping Boxes 15-Pack
PN: HD201614DW
18x18x18 V3c 350# Weather-Resistant Corrugated Boxes 10-Pack
PN: 181818V3C
18x18x16 ECT-48 Kraft Double Wall Corrugated Shipping Boxes 10-Pack
PN: HD181816DW
18x18x18 ECT-71 Heavy-Duty Double Wall Corrugated Shipping Boxes 10-Pack
PN: HD181818HDDW
18x18x18 ECT-48 Double Wall Corrugated Shipping Boxes w/ Hand Holes 10-Pack
PN: HD181818DWHH
18x18x18 ECT-48 Kraft Heavy Duty Double Wall Corrugated Shipping Boxes 10-Pack
PN: HD1818DW
22x15x15 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 221515
22x15x10 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack
PN: 221510
18.5x18.5x9 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 18189R
30.5x6.5x24 ECT-32 Telescoping Outer Boxes 10-Pack
PN: T30624OUTER
18x18x18 ECT-90 Triple Wall Corrugated Boxes 5-Pack
PN: HD181818TW
32x6x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack
PN: 3266
30x8x8 ECT-32 Kraft Corrugated Boxes
PN: 3088
24x14x14 ECT-32 Kraft Corrugated Boxes 15-Pack
PN: 241414
24x14x10 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 241410
24x14x8 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 24148
24x14x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack
PN: 24146
24x14x4 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack
PN: 24144
22x16x16 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 221616
22x16x12 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 221612
22x16x10 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 221610
22x16x8 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 22168
22x16x6 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack
PN: 22166
22x16x4 ECT-32 Kraft Corrugated Shipping Boxes Single Wall 25-Pack
PN: 22164
Product Help Request
Send the SKU, quantity, delivery ZIP, and any required specs so we can route the request.
Overview
Compare large cardboard boxes by the complete packed item, listed dimensions and purchase quantity. The selected formats below include 18-inch and 20-inch cartons with different bundle counts.
Measure the complete packed item, including the cushioning and closure your process requires. Compare that measurement with the exact product’s usable interior. The examples below distinguish explicit inside dimensions from a listed size that still needs confirmation.
Compare selected current box formats
| Exact SKU | Dimensions | Listed board / construction | Boxes per unit | Fit evidence |
|---|---|---|---|---|
| 181818 | 18 × 18 × 18 | ECT-32 | 20 | Inside dimensions explicit |
| 202020 | 20 × 20 × 20 | ECT-32 | 10 | Listed size; confirm usable interior |
| 201812 | 20 × 18 × 12 | ECT-32 | 10 | Listed size; confirm usable interior |
ECT is an edge-crush rating of the corrugated board. It does not establish a finished carton’s safe payload, drop resistance or stacking limit. Keep wall construction separate from ECT, and evaluate the complete package for the item, storage and shipping method.
Measure the finished parcel, too
Inside dimensions help check the item’s fit; outside dimensions are relevant to carrier rating. Confirm the closed parcel’s outside measurements, weight and service before comparing shipping costs. A larger carton may change dimensional pricing, but size alone does not determine the charge.
Choose double wall because the complete packaging specification calls for it, rather than using a generic 40- or 65-pound cutoff. ECT-44 is a board grade and does not by itself mean double-wall construction.
Plan whole bundles
Box purchase-unit calculator
Whole purchase units = round up(boxes needed ÷ boxes per unit). The count must come from the selected SKU, not the box size. Quantity planning does not confirm fit or payload.
For 120 boxes, a 20-count format requires six units. A 10-count format requires twelve. Compare the same required count, then include the surplus produced by whole-unit rounding. A lower bundle price does not necessarily mean a lower delivered price per box.
For a bulk or wholesale shipping-box order, send each SKU, required boxes or bundles, destination ZIP, required date and receiving conditions. Include residential or commercial delivery, dock or forklift access, and any liftgate or appointment requirement. Compare actual checkout shipping or a written delivered quote. No freight rate is inferred from size alone.
Questions before ordering
Can I buy by the individual box?
These examples are sold in the purchase counts shown. The product page establishes the order unit and current ordering details.
Does a stronger ECT number mean I can pack more weight?
A board rating alone cannot answer that. Confirm wall construction and the complete packaging requirements for your shipment; test the packed item where appropriate.
How should I compare two suppliers?
Match usable size, construction, grade and boxes supplied. Divide the merchandise total plus actual shipping and applicable fees by boxes supplied, using the same tax treatment for both orders.
Continue your buying plan
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.
Use filters and product titles to narrow by the specs that affect fit.
Open the product page before ordering a case so you can check quantity, unit, and limits.
Save the SKU or product link for repeat purchasing and support questions.
For pallet, recurring, or mixed-SKU orders, send your list and ZIP and get a delivered price by email.
What to check first
- Inside dimensions
- Board grade or strength rating
- Box style and closure
- Case or bundle quantity