The supporting structure is stairs already there along with 2x12's cut free hand with a circular saw using a straight edge and a pencil to mark where it fit there are 5 of them you could have 500+ lbs jumping on it and there is zero movement anywhere nice long deck screws were used. Believe it or not everything exceeded the properties of mating surface to surface which was odd, I basically guessed the depths of how far it would have to be dug in to mate and made cuts accordingly. There was a little overhang and I have since added a hand railing which has been dug in with a post hole digger and attached to the support of the ramp as well for that I used my Ryobi tools. I also just recently built a solar rack with my brushless ryobi drills and such having about 2kw of output max. Did not take video or pictures though while I was doing it just after it was done finished product only so dunno if it would fly as a project but maybe I should post it anyway why roof mount solar when you can build your own rack on the cheap and save yourself some cashola monthly on solar.