Ok last week I had my Dirkson building delivered and really only had two places to put it in my yard either in a utility easment against my fence under some powerlines where its flat or up closer to the house where there is a slope. I chose the slope because of the easement. One side of my door opening is 19 inches from the ground and the other is about 17, I believe. Anyway I started building a concrete ramp for it last weekend, which is about 6 feet long by 6 feet wide. Today I went to put my riding mower into the shed and it wouldnt go, the mower deck is hitting on the bottom of the shed. So I either can have the shed moved to where its flat and build an easy ramp or I have to add onto this ramp. Problem is I can't figure out the degree of slope I need to make it into the shed. If I use the formulas I found on the internet which is a 12-1, then my ramp would be about 15 feet long or so. I've already put 32 bags of concrete into this little project so the idea of pouring a bunch more or hiring a contractor to do seems unpleasant, not to mention I'd have a huge chunk of concrete stuck out in the middle of my yard.