How to Install Hardwood Flooring With a Bullnose Edge
Daniel Kim
Updated on March 12, 2026
Installing a hardwood floor is a popular homeowner project that can instantly add value of a home. While installing a hardwood floor is a straightforward process, many homeowners encounter problems with the finishing procedures once the flooring has been installed. A typical problem is how to finish the exposed edges of wood, and different transition pieces are used for various surfaces. When the hardwood ends at the top of a staircase, a bullnose transition piece is the standard used to finish the edge of the floor.
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Measure the end length of the hardwood flooring where the bullnose will be installed.
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Cut the bullnose transition to measurement. Use a miter saw and miter box to obtain a straight, even cut.
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Place the groove of the bullnose onto the tongue of the hardwood edge, tapping into place with a rubber mallet until the seam is tight.
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Nail the bullnose into place. Use finishing nails six to eight inches apart, evenly spaced, on the bullnose transition.
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Countersink the nail heads. Use a hammer and a nail set to tap the nails until they are below the top surface of the bullnose.
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Fill in the nail holes. Use hardwood finishing putty that matches the shade of the hardwood floor.