I rarely install pre finished so I can use your help in narrowing down the choices . My Uncle has a commercial space to straighten out which will be a massage therapy office/ offices.

The flooring is mostly oak and isn't suitable to be sanded and re finished and code wont allow for them to use carpet so we need to either float over the existing floor or staple to it .

Here's the kicker though. The flooring in this building is all over the place with some very uneven transitions so I haven't made up my mind if floating will be better than staple down

Lastly, we're thinking a 3/8" floor will be the way to go in this building to keep overall height down .But I'm all ears on what you think .Thanks

Did another walk through and decided the only way to pull this off is to rip cut lots of shims and use 1/4" plywood to get the rooms level.Then we're going to float a vinyl click together floor.

On of the rooms is almost 3 inches out of level from the highest spot to the lowest corner.Going to charge a bunch of money on this one