Shipping Box Wall Type Single Wall Inside Length 18 in Inside Width 16 in Inside Height 8 in 18x16x8 in Inside LxWxH 32 ECT RSC Outside Length 18 3/8 in Outside Width 16 3/8 in Outside Height 8 5/8 in 18 3/8x16 3/8x8 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