are you bidding the job to do or having it bid to be installed for you? if you are installing how much do you want to make on the job? prices vary from location to location. how much prep work is involved flattening the floor? you can't really get an answer here as we can't see the job from here and like i said it varies in different parts of the country and also on how good the person doing the job is or how good they think they are.