Large Cardboard Boxes (18"+)
25.25x23x5 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 25235R
24x24x24 ECT-32 Kraft Corrugated Moving Boxes 10-Pack
PN: 242424DPB
24x24x24 ECT-44 Kraft Heavy-Duty Multi-Depth Corrugated Shipping Boxes 10-Pack
PN: MDHD242424
24x24x24 ECT-32 White Corrugated Shipping Boxes 10-Pack
PN: 242424W
24x24x24 ECT-32 Kraft Adjustable Multi-Depth Corrugated Shipping Boxes 10-Pack
PN: MD242424
24x24x24 ECT-32 Kraft Corrugated Cube Shipping Box 10-Pack
PN: 242424
24x24x18 ECT-48 Double Wall Corrugated Boxes 10-Pack
PN: HD242418DW
24x24x12 ECT-48 Double Wall Corrugated Boxes with Hand Holes 10-Pack
PN: HD242412DWHH
24x24x8 ECT-48 Double Wall Corrugated Shipping Boxes 10-Pack
PN: HD24248DW
24x24x6 ECT-48 Kraft Double Wall Boxes 10-Pack
PN: HD24246DW
24x24x6 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack
PN: 24246
20x20x28 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack
PN: 202028
18x18x30 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack
PN: 181830
12x12x36 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 121236
10x10x38 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack
PN: 101038
8x8x40 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 8840
36x6x36 ECT-44 Kraft Side Loading Box 10-Pack
PN: HD36636FOL
28x5x38 ECT-32 Kraft Side Loading Boxes 20-Pack
PN: 28538FOL
24x24x24 ECT-48 Double Wall Corrugated Boxes 10-Pack
PN: HD2424DW
24x24x24 ECT-44 Kraft Heavy-Duty Corrugated Shipping Boxes 10-Pack
PN: HD242424
24x24x20 ECT-48 Double Wall Corrugated Boxes 10-Pack
PN: HD242420DW
24x24x18 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack
PN: 242418
24x24x10 ECT-48 Double Wall Corrugated Boxes 10-Pack
PN: HD242410DW
30x18x18 ECT-48 Kraft Double Wall Corrugated Boxes 10-Pack
PN: HD301818DW
24x24x24 ECT-48 Double Wall Corrugated Shipping Boxes w/ Hand Holes 10-Pack
PN: HD242424DWHH
32x18x12 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 321812
40x10x10 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 401010
36x14x10 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 361410
36x14x6 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 36146
32x18x18 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 321818
30x20x20 ECT-48 Double Wall Corrugated Boxes 10-Pack
PN: HD302020DW
30x20x20 ECT-44 Heavy-Duty Multi-Depth Corrugated Shipping Boxes 10-Pack
PN: MDHD302020
30x20x10 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 302010
30x20x6 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 30206
25x25x20 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack
PN: 252520
25x25x12 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 252512
24x24x24 ECT-90 Triple Wall Corrugated Boxes 5-Pack
PN: HD242424TW
44x6x35 ECT-44 Kraft Side Loading Boxes 10-Pack
PN: HD44635FOL
36x14x14 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 361414
30x20x20 ECT-32 Kraft Corrugated Shipping Boxes 10-Pack
PN: 302020
30x20x18 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 302018
30x20x12 ECT-32 Kraft Corrugated Boxes Durable Shipping 15-Pack
PN: 302012
30x20x8 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 30208
25x25x25 ECT-32 Kraft Corrugated Cube Shipping Boxes 10-Pack
PN: 252525
14x14x36 ECT-32 Kraft Corrugated Shipping Boxes 15-Pack
PN: 141436
14x4x42 ECT-32 Full Overlap FOL Side Loading Boxes 15-Pack
PN: 14442FOL
10x10x40 ECT-32 Kraft Corrugated Shipping Boxes 25-Pack
PN: 101040
8x8x42 ECT-32 Kraft Corrugated Shipping Boxes 20-Pack
PN: 8842
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