[Cairo94507]

Hi Shaun, I did that exact thing in my 3-car. I would say make sure the location you choose is well thought out for space to walk around and fit large and smaller cars. I went down 18" the garage is 40 years old. We then packed down some crushed rock about 6" worth. We added rebar and also used the styrofoam blocks to raise the rebar off the rock. Then we poured the balance of the pit in concrete to the level we determined would allow for a flush finish. We allowed 1/2" all the way around the lift ramps. My lift is a mid-rise scissor lift made by BendPak. It has two separate lift rams and you can set their spacing at whatever you want. Off the top of my head we set them with 33" between them. Used 3" PVS to run lines from the outs to the cabinet where the hydraulics are as well as a 2" PVC between the two ramps. We then bolted the ramps to the concrete with the provided lag bolts and have never had an issue. Ramps sit flush when down and raise nicely with a car on them.