Shipping Box Box Style Heavy Duty Long Wall Type Double Wall Inside Length 20 in Inside Width 12 in Inside Height 12 in 20x12x12 in Inside LxWxH 48 ECT RSC Outside Length 20 3/8 in Outside Width 12 3/8 in Outside Height 12 5/8 in 20 3/8x12 3/8x12 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