Group 1
Metric

Group 2
Engineering

Group 3
Engineering

Group 4
Map

Group 5
Architectural

1:1

1" : 10 '

1" : 100 '

1" : 1000 '

1/32 " = 1'

1:2

1" : 20 '

1" : 166 2/3 '

1" : 1200 '

1/16 " = 1'

1:5

1" : 30 '

1" : 200 '

1" : 2000 '

3/32 " = 1'

1:10

1" : 40 '

1" : 250 '

1" : 3000 '

1/8 " = 1'

1:20

1" : 50 '

1" : 300 '

3/16 " = 1'

1:33

1" : 60 '

1" : 333 1/3 '

1/4 " = 1'

1:50

1" : 83 1/3 '

1" : 400 '

3/8 " = 1'

1:100

1" : 416 2/3 '

1/2 " = 1'

1:250

1" : 500 '

3/4 " = 1'

1:500

1" : 583 1/3 '

1" = 1'

1:1000

1" : 600 '

1-1/2 " = 1'

1:1250

1" : 625 '

2 " = 1'

1:2500

1" : 666 2/3 '

3 " = 1'