Wood textures of natural color oak for flooring and paneling, all under public domain license (use as you want). You can download diffuse, bump, normal, reflexion and shiny maps for use as texture channels. If you are a sweethome3d user you can use the diffuse map to add a new texture to your library (look at the Sweethome3d documentation).
These textures are available as real products, each texture is available on floor, wall and ceiling. For more information, have a look on the donor website, the hardwood flooring and panelling manufacturer Europlac or join them on their facebook
page dedicated to interior design in wood.