If you want to go electronic. Sketch up (free to use on the web) would do the job (just ignore the z axis). That said, the learning curve for any app means you would have had the job done already using the paper and scissors technique.
If you want to go electronic. Sketch up (free to use on the web) would do the job (just ignore the z axis). That said, the learning curve for any app means you would have had the job done already using the paper and scissors technique.