: Choose 5-ply (double-walled) boxes for heavy items or long-distance shipping to prevent bending.
Amazon Business sells standard bundles of long corrugated boxes, such as 28x4x4". where to buy long boxes
You can find long boxes from different retailers, depending on your needs. : Choose 5-ply (double-walled) boxes for heavy items
: These are best for acid-free archival storage. and height. If using cushioning
BCW Supplies is the industry standard for white corrugated storage boxes.
: Measure the item's length, width, and height. If using cushioning, add 2 inches to all sides for "void fill".
Choosing the right "long" box depends on whether you are shipping or storing.