1,600. ask away - thats one of the great things about MN. we are absolutely useless at DIY and don't have time, so it wasn't really a choice for us. However, unless you know what you are doing i think it could be a false economy to DIY as the woods not cheap. YOu need to leave tiny gaps between planks to allow for expansion, and lay correct way depending on light; and things round raidiator pipes to finish it nicely. my odd job man - who's really good - did his and it expanded and pushed up off floor