Step 3 of 4: Vertical Rise

For a list of  N scale, 2 track helix solutions, click the range which contains your desired vertical rise.

 

3/4 Turn

 4.0" to 6.0" 6.0" to 8.0" 8.0" to 10.0"
10.0" to 12.0" 12.0" to 14.0" 14.0" to 16.0" 16.0" to 18.0"
18.0" to 20.0" 20.0" to 22.0" 22.0" to 24.0" 24.0" to 26.0"
26.0" to 28.0" 28.0" to 30.0"