Shipping Box, Box Style Heavy Duty, Wall Type Double Wall, Inside Length 18 in, Inside Width 14 in, Inside Height 12 in, 18x14x12 in Inside LxWxH, 48 ECT, RSC, Outside Length 18 3/8 in, Outside Width 14 3/8 in, Outside Height 12 5/8 in, 18 3/8×14 3/8×12 5/8 in Outside LxWxH, Wall Thickness 1/8 in, Fluting Profile C Flute, Maximum Load Capacity 100 lb, Material Corrugate, Color Kraft, Post-Consumer Recyclability 100 Percent, Standards ASTM D5118