Shipping Box, Box Style Heavy Duty, Long, Wall Type Double Wall, Inside Length 48 in, Inside Width 12 in, Inside Height 12 in, 48x12x12 in Inside LxWxH, 48 ECT, RSC, Outside Length 48 3/4 in, Outside Width 12 3/4 in, Outside Height 13 in, 48 3/4×12 3/4×13 in Outside LxWxH, Wall Thickness 1/4 in, Fluting Profile C Flute, Maximum Load Capacity 100 lb, Material Corrugate, Color Kraft, Post-Consumer Recyclability 100 Percent, Standards ASTM D5118