Heavy-duty double wall x-large moving boxes, 24"L x 24"W x 18"H, Kraft (Pack of 10). these extra-large heavy-duty double wall moving boxes are great for packing and moving heavier items. Heavy-duty construction provides greater protection and stacking strength. Manufactured from heavy-duty 275#dw/ect-48 Kraft corrugated. Cartons are sold in bundle quantities and ship flat to save on storage space and shipping. 10 boxes per bundle.