Looking for ideas please on the best way to complete this trim. Do I run the 1/4 round to the floor and trim the baseboard to fit, or run the baseboard to the stairs and [somehow] match the 1/4 round to baseboard? Or other options>?

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    there is no best way unless you define what that means
    – jsotola
    Jan 24, 2021 at 21:31
  • have you thought of using a triangular piece, attached to the end of the stair stringer? ... triangular cross section when viewed from top, looking straight down
    – jsotola
    Jan 24, 2021 at 21:37

1 Answer 1


Fill the gap with a plug at the space between the stair stringer and wall (2nd photo: where the floor molding disappears). Or cap the beveled end of the stair stringer with 3/4" pine with the stringers profile.

If that gap is closed the floor molding will butt against it. Than the quarter round can be terminated with a face bevel right equal with the stringer.

The gap has to be covered in order to have an flat (90 degree) surface to cut the molding's to.

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