You can use a home improvement loan for general improvements or for a specific project such as laying a wood floor. These loans are placed second in line on the title of your home. These work basically the same as a second mortgage or home equity loan. You get all the money in one lump sum at the loan closing.
You do have options though, it all depends on the amount you want to borrow. If you need only a small amount, a line of credit might be the best way. This way you can withdraw money in any amount you need, whenever you need it. This type is more flexible but the interest rate is adjustable and so could increase over time.
If you are looking to borrow a large sum for some major remodeling, you might want to look into long term fixed rate loans. This way your payments will never increase. As long as your home improvement project is within the boundaries of your local building regulations you should have no trouble getting the loan you need for you wood flooring installation.
Most loans are from five to thirty years in duration. You can use a home improvement loan calculator to get an idea of what you want before approaching a lender. Generally there is no equity required for a home improvement loan and they are deductible. What are you waiting for? Get your wood floors in now.