I'm finally getting around to post some pics of the shop I built when I retired and moved back to FLA. It's 40x30, with 12 1/2 foot ceiling on the lift side and 10 1/2 on the attic storage side. I'm going to post pics I have taken in hopefully a decent order of the build. If you have any questions let me know. The floor is 4" and I had them make the section for the lift deeper, not sure how deep it is.