I am having bamboo floors installed. When we started to move furniture back into the first room we noticed that the floor scrached and dented very easily. We then tested a uninstalled board for scrach resistance and found that it is scraching an gouging, if you rub your fingernail against it. We tested it against several other floor samples that we have. It scrached easier than even the cheapest hardwood. The finish does not seem to be the same as the bamboo sample we were given. Can you tell me how to test the floor to tell if the finish or wood is defective.