[Ron61]

I am not an engineer but I can tell you what happened to a friend of mine and he wound up getting a 4 post lift. The company came out and checked his slab and it was reinforced with rebar and 4 inches thick, so they said it would work just fine. After about a month the lift post on one side started breaking the slab and it actually started to pull up a little. He called them and they looked at it and said they had never seen that happen, but they took that lift our, cut out that spot in the floor and fixed it, and then sold him the 4 post lift and took the full price of the 2 post one off the 4 post price. I don't remember the brand of lift but not many companies here would do that and I doubt if any would now.

Ron