I just got hardwood stairs installed. [The installer left a gap between the end of the hardwood plank and the molding and filled it with putty—and it looks terrible.][3] What can I do to cover that gap? I hate it.

the worst stair

looking from top

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    Did you ask them about the gap? Your description sounds unacceptable for a professional. – JPhi1618 Jul 19 '17 at 17:34
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    it seems like he cut all the planks and stairnose the same size instead of measuring each one individually. – Emma H Jul 19 '17 at 17:38
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    I’m voting to close this question because it's been abandoned – FreeMan Dec 22 '20 at 14:05

Maybe a stained or painted quarter round or some sort of small fancy, decorative moulding.


Depending on environmental conditions, the wood may expand and contract with the moisture in the air, so the gap is useful.

Decorative moulding is one option, though you may have difficulty making it look good as it curves around the nosing.

An alternative is to find some wood coloured decorators caulk and apply a small bead in the gap. You should be able to match it to the hardwood used on the stairs. This will be flexible and provide a consistent finish down the flight of stairs (as long as you apply it neatly...).

  • I left gaps between the treads and the wall-side skirtboard of my stairs intentionally, to allow for expansion. The treads themselves probably don't expand and contract enough for that to be necessary, but the skirtboard wood itself may expand and contract, so I probably made the right choice. I plan to put little molding strips to cover the gaps, but I haven't decided what to do at the ends of the stair noses, so I haven't installed trim yet. – Steve Nov 16 '17 at 23:39

That's a pre finished engineered, very stable. He should have pre glues planks together to make full size treads and risers. Then each step can be templeted. Then each tread and riser get glued in and blind nail. I full spread glue mine on but a nice serpentine of construction adhesive works too. They look awful, be sure to get him back out.

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