I'm doing engineered floating (glued T&G) Brazilian cherry floors w/ cork underlayment on concrete sub-floor (replacing current laminate and carpet flooring) , and I'm trying to figure out where to start. I know for a fact that my floors are not flat, and will need some work. My husband and I discussed it and have decided to start somewhere in the middle, since it will be highly noticeable in the center entryway if the board is not parallel to the wall. Which would be ideal #1 or #2? (in picture below) or does anyone have any other ideas of where to start?



Also does anyone have any suggestions of cork underlayment?

Thanks in advance!

I like #2. And are you gluing the cork to the concrete? I hope yo understand that it wont be as "squishy" and be a little harder on the feet. Not much though. Its not a bad thing, 1/4" cork I prefer.

I wasn't planning on gluing the cork since it's floating, should I though? What type of underlayment do I put beneath the cork?
Will cork really be harder on the feet than concrete?
Any suggestion on where to get the cork?

Thanks!

You need minimum six mil plastic under the cork.

As far as squishy, hardwood is a hard surface. I don't understand "squishy".

Yeah I don't want squishy, I just want it to give just a little bit. Don't like the feeling of walking on hardwood directly on concrete. Is there anything else that might work better? Like that quiet walk stuff?

Cork is a pretty firm underlayment as far as underlayments go. I put six mil under quietwalk for hardwood floor over concrete. Floormuffler is good.