Shipping Box, Wall Type Single Wall, Inside Length 18 1/2 in, Inside Width 18 1/2 in, Inside Height 9 in, 18 1/2×18 1/2×9 in Inside LxWxH, 32 ECT, RSC, Outside Length 18 7/8 in, Outside Width 18 7/8 in, Outside Height 9 5/8 in, 18 7/8×18 7/8×9 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 17 in to 19 in Length Shipping Boxes