RafterMan is a 32-bit program that figures rafter lengths.
You simply enter the span and RafterMan gives back:

Common Length
Hip/Valley Length
Jack Lengths
Ridge Height
For split-pitch roofs:
Degree of plumb-line for Hip/Valley
Jack bevel-cuts
RafterMan also includes:
Feet/inch calculator
Online Support

You can run all the roof sections one right after another and then save all to file to pull up later or you can print them out to be used on the job site.

Please give RafterMan a FREE 30 day trial by downloading it today.

A note from the author.
RafterMan has been in development and gone through changes with operating systems for a period of 17 years. I have used RafterMan on literally hundreds of roof systems and it has been tried and found true. I have been a framing contractor for 20 years in DFW area of Texas. You can generate a very complex roof system in 10 minutes. You'll wonder how you ever got along without it.

Thank you,
Steven R. Rowell
Rowell Enterprises