Literature Mailer Literature Mailer Type Standard Wall Type Single Wall Inside Length 17 1/8 in Inside Width 11 1/8 in Inside Height 4 in Inside LxWxH 17-1/8x11-1/8x4 in Board Test 32 ECT Outside Length 17 7/8 in Outside Width 11 5/8 in Outside Height 4 1/4 in Outside LxWxH 17-7/8x11-5/8x4-1/4 in Wall Thickness 5/32 in Fluting Profile B Flute Maximum Load Capacity 65 lb Material Corrugate Color White Post-Consumer Recyclability 100 Percent Standards ASTM-D-5118