Shipping Box Box Style Long Wall Type Single Wall Inside Length 18 in Inside Width 6 in Inside Height 6 in 18x6x6 in Inside LxWxH 32 ECT RSC Outside Length 18 3/8 in Outside Width 6 3/8 in Outside Height 6 5/8 in 18 3/8x6 3/8x6 5/8 in Outside LxWxH Wall Thickness 5/32 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