Hello I'm new here. I'm a young home owner that is handy but still inexperienced. I'm trying to get a steel garage going up in my yard. I have no doubt that I can put the structure up just don't know about the foundation. I've been at site where non professionals have done there own. Did not seem to difficult. I'm just wondering if it's not worth sub contracting the job out. I don't have a lot of money and was wondering what a job 25' X 30' would cost. 4 inches think. Looks like I'm allowed to have a 1' x 1' footing, Illinois. I have or have access to pretty much every tool or equipment. I'm not looking for perfection as it will be semi-temporary. Also what is concrete going for a yard now. I believe I'm going to need 10 yards for that job, correct?