1 : 30 1 : 90 1 : 1 1 : 2 1 : 5 1 : 10 1 : 15 1 : 20 1 : 25 1 : 50 1 : 100 1 : 150 1 : 200 1 : 500 1" = 1000' 1" = 100' 1" = 50' 1" = 20' 1" = 10' 1" = 6' 1" = 1' 1/2" = 1' 1/4" = 1' 1/8" = 1' 1/16" = 1' 1/32" = 1'