How to Refinish Old Uneven Douglas Fir Floors
- 1). Push a vacuum cleaner across the surface of the floor. Spray a specialty wood cleaner over the entire surface area of the floor. Mop down the floor and allow it to air dry.
- 2). Fasten a piece of 100-grit sandpaper to the bottom of an upright sander. Push the sander slowly across the floor, following the grain of the wood. Repeat with 220-grit sandpaper
and then 360-grit sandpaper. Vacuum the dust from sanding. - 3). Examine your floors. If there is no discoloration, use a clear polyurethane finish. If there is some discoloration, consider using a tinted polyurethane. Pour the polyurethane finish of your choice into a paint roller pan. Dip a paint roller in the finish and cover the floors with a light coat. Give it 24 hours to dry.
- 4). Attach a piece of 500-grit sandpaper to the bottom a sander and run it over the finish. Push a vacuum cleaner across the floor and suck up the dust from sanding. Apply two more coats of polyurethane, allowing 24 hours of drying time between them.
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