I had this throughout my house that I built. If you aren't going to be there long term I think it's a great idea....I would have thought it be cheaper than the floating click together flooring.....BUT.....
You'd have to make sure that your floor is even....KWIM? Mine was placed direct onto a concrete pad, and you could see little bits of dirt that weren't cleaned off the floor properly kind of showing through (no big deal though). Also like JwithJ said, you have to be careful as it's pretty soft stuff so dropping things on it can poke holes through.
Not sure, maybe they have varying thicknesses you can choose from, but I'd say the thicker the better!
Mine was timber plank and it looked great! It holds onto dust though!!
Bookmarks