I attended a Vanderkoi (sp) seminar a few years ago and we went around the room and each contractor shared their net profit on a per job basis. The average was 18 to 22% (again, per job). And that's about where we are with our hardscapes, sometimes 25%, sometimes 30%, but most of the time 18-22%. LOL - so this guy claiming "30%" is just hilarious!!!!! It would be cheaper for me to not do the work at all (which we're not) and take the guy golfing for a day. .