We typically use pipes from 1/2" to 36" on projects, using a variety of pipe types. We typically show pipes less than 4" as single line pipe vs. double line pipe. We are currently running these "pipes" as Pipe Placeholders as it is the only thing close to how we need to show it. However, adding appurtenances such as valves, fittings, equipment, etc. onto these pipe placeholders is not easy. There needs to be some sort of setting on how to actually control the display of pipes (ie a setting that all pipes 3" and below are single line, etc.).
