Q: One visitor asked, "I have a newly laid douglas fir floor. I would like to prevent the fir from oxidizing and turning orange. I have been told to use a water based polyurethane finish. I'm afraid that in a few years the wood will still turn orange. Do you know about bleaching the wood to prevent this change in color?"

A: I have no experience with Douglas Fir. However, it seems to me the best option is a water based finish. There are some excellent ones on the market. I would suggest you go to www.basiccoatings.com and make an enquiry. They are a major water base manufacturer. Their Street Shoe product is tough as nails and fast cure. You may get a reply from Mark Culbertson, whom I have found very engaging and helpful. Since they have tested their products on numerous woods, including exotic brands, your best answer will come from them.