This will be a "working garage" so I was thinking some sort of floor paint. What have people found to work best to avoid "oil stains" and be a good value? The floor already has some scuffing/scratches in it from the skid steer tractor they used to lift blocks up on the scaffolding. I'm not that worried about it as like I said, it will be a working garage (e.g. metal grit, O/A welding flux, sparks, floor jacks, machining oil all present) that just might need a floor touchup from time to time.What are you planning for floor covering?
The expansion joints in the floor were put in via a concrete saw instead of the traditional hand tooled joints. This looks like a much better way to go as floor jacks should easily roll over the 1/8" wide, square edge joints much better than the 5/8" wide, rounded edge joints.
It appears they didn't put the 1% grade (called for in the plans) in the floor at the large entry doors as water pooled inside the garage from a rain storm before the plastic lining was applied to roof sheeting. I'm not all that upset about it as I wanted a "level" floor throughout and the grading at the doors would have been in conflict with that. My main worry will be making sure the door bottoms seal and don't let rain water in as it runs down them. The doors will be "coil style" rollup doors. Have you guys found water leakage under your garage doors to be an issue? If so, what have you done about it?