Shipping Box, Box Style Heavy Duty, Wall Type Double Wall, Inside Length 20 in, Inside Width 16 in, Inside Height 16 in, 20x16x16 in Inside LxWxH, 48 ECT, RSC, Outside Length 20 3/4 in, Outside Width 16 3/4 in, Outside Height 17 in, 20 3/4×16 3/4×17 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, Inside Length Range 20 in to 22 in Length Shipping Boxes