I have been giving up my weekends for the last 4 weeks installing new floor and renovating my office. we installed the new luxury vinyl plank flooring and it is incredible. it doesn't sound hollow but it's a floating floor installed on a thin rubber underlayment. It is basically a waterproof interlocking floor .... Extremely durable we have large dogs and their nails don't mark it up ..installs very easily with only a few minor tools required. The cost of the flooring is about $2.50 a square foot and another $0.50 a square foot for a good underlayment. This particular product came in 4 ft by 7 inch wide planks but there are different sizes. the product that we used has a 15-year commercial warranty and lifetime residential warranty.