Shipping Box, Box Style Long, Wall Type Single Wall, Inside Length 21 in, Inside Width 10 in, Inside Height 10 in, 21x10x10 in Inside LxWxH, 32 ECT, RSC, Outside Length 21 3/8 in, Outside Width 10 3/8 in, Outside Height 10 5/8 in, 21 3/8×10 3/8×10 5/8 in Outside LxWxH, Wall Thickness 1/8 in, Fluting Profile C Flute, Maximum Load Capacity 65 lb, Material Corrugate, Color Kraft, Post-Consumer Recyclability 100 Percent, Standards ASTM D5118, Inside Length Range 20 in to 22 in Length Shipping Boxes