Long & Flat Boxes
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Long and flat boxes offer a versatile solution for shipping and storing items of various dimensions. Long cardboard shipping boxes provide a secure and protective enclosure for products. Ideal for mailing or transporting elongated items, flat shipping boxes ensure safe delivery and minimize the risk of damage during transit and store flat. With durable corrugated construction, long shipping boxes maintain their structural integrity, offering a reliable packaging solution for a range of applications.
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18 - 36" Flat Boxes
18-36" flat boxes allow convenient content storage for easy moving, shipping or other transport applications. Cartons are designed to fit popular paper sizes to prevent damage to forms, catalogs and other printed materials. Manufactured from 200#/ECT-32 corrugated kraft for added strength and durability. Flat cardboard boxes are available in various sizes and package quantities.
| Compare | Image | Inside Length | Inside Width | Inside Height | Strength | Color | Package Quantity | Price | Model # | Related Products | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 20 in | 20 in | 8 in | 200# / ECT-32 | 15 | as low as $3.38 ea. Save $0.29 (8%) | WBB68809 |  |  |  | ||||
 | 18 in | 12 in | 6 in | 200# / ECT-32 | 25 | as low as $1.39 ea. Save $0.12 (8%) | Ships Same Day WBB68758 | | | | ||||
 | 20 in | 10 in | 4 in | 200# / ECT-32 | 25 | as low as $1.59 ea. Save $0.14 (8%) | WBB39738 | | | | ||||
 | 18 in | 13 in | 5 in | 200# / ECT-32 | 25 | as low as $2.33 ea. Save $0.20 (8%) | WBB2077673 |  |  |  | ||||
 | 18 in | 18 in | 3 in | 200# / ECT-32 | 25 | as low as $3.03 ea. Save $0.26 (8%) | WBB3166281 | | |  | ||||
 | 29 in | 17 in | 3 in | 200# / ECT-32 | 25 | as low as $4.17 ea. Save $0.36 (8%) | WBB3166279 | | | | ||||
 | 24 in | 20 in | 4 in | 200# / ECT-32 | 20 | as low as $4.20 ea. Save $0.37 (8%) | WBB1638638 | | | | ||||
 | 34 in | 21 in | 6 in | 200# / ECT-32 | 10 | as low as $6.00 ea. Save $0.40 (6%) | WBB3166282 | | | | ||||
 | 36 in | 24 in | 6 in | 200# / ECT-32 | 10 | as low as $7.60 ea. Save $0.60 (7%) | WBB68917 | | | | ||||
 | 32 in | 32 in | 8 in | 200# / ECT-32 | 10 | as low as $10.25 ea. Save $0.75 (7%) | WBB3166280 | | | | ||||
Showing 1-10 of 102 results
6 - 17" Flat Boxes
6-17" flat boxes are ideal for warehouses, content storage, and other applications. Cardboard boxes are available in various lengths and widths to best meet any shipping or storage needs. Cartons are sold in bundle quantities and constructed from heavy-duty cardboard for added strength and durability.
Showing 1-10 of 98 results
6 - 20" Long Boxes
6-20" long corrugated cardboard boxes are ideal for shipping and storing oddly shaped items. The wide openings make the boxes easy to pack, and they ship, and store flat to save space. Lengths and widths of the cardboard boxes vary, and they are available in bundle quantities. The heavy duty 200#/ECT-32 corrugated kraft construction provides added strength and durability.
Showing 1-10 of 55 results
22 - 60" Long Boxes
22 - 60" corrugated boxes protect long narrow items during shipping and in storage environments. Manufactured from heavy duty cardboard, these boxes are durable and reliable. Long boxes ship flat to save space and money. Sold in various bundle quantities. Cardboard box widths and heights range per model.
Showing 1-10 of 63 results