Interior fire oak doors
What You Need to Know about Oak Fire Doors : Interior Fire Oak Doors
Quote from Article entitled What You Need to Know about Oak Fire Doors :
Oak fire doors are mostly fitted in commercial buildings but they can also be fitted in your home if it has over two levels. It is important to note that loft conversions in private homes also count as additional levels. The fire doors should be fitted on the doorway that leads to a stairwell and to any habitable room. You should also fit a fire door between your garage and the house. If you use your house for both business and living purposes, you should have a fire door separating the business area from the residential area.
The full version of the article can be found here.