Dont know if you would lay them same as laminates, normal to nail deal floor which would mean battens on your concrete, I have approx 1000sq ft of red deal upstairs, fitted 10 years ago, wear wise and varnish still perfect Saddles need a coat this year, only fault I have there is a few creaky ones (not many), Also have a maple solid downstairs and it has been sanded and coated twice in 10 years and there are patches around table that needs to be done this year again, Would love to know of a really good hard coating for them if anyone knows. Only thing these floors should last forever but you have to sand and coat them the odd time, Hope this helps make up your mind