First to comment to my own thread :). I was still digging through posts on houzz and found one post that got me thinking it would be a good compromise. Oak risers, carpet treads. The risers will tie it to the new floors. I have no structural changes, so no changes in code, it's pet friendly, quiet, safer and most important, the effort would be much much less.

I didn't mention, but this is an apartment addition, not the main house.

You would need to remove the treads and risers for replacement. Adding onto it will affect the height and depth of tread, which affects the building code. All staircases are built to code, you cannot add onto it, only replace.

IMO it depends on what you add to the treads we added vinyl plank to ours the plank is very thin and did not change the code at all as for risers you have risers ,clean them sand them and paint them . IMO those treads look pretty good for having been covered in carpet so do you know what kind of wood they are maybe just a good sanding and refinishing is all you need a good floor refinisher could probably come close to matching the other floors.

I would replace just the treads & paint the existing risers.

Or, to make it easier, paint both the treads & risers and add a carpet runner.

The second option if this is going to be a rental. Less noise with a soft covering. And if the apt. gets incorporated into the house at a later date, you can upgrade the stairs then.

Because this is a secondary area, I, personally,

would fill, caulk, and paint everything white. A flat weave or low pile stair runner would be a more modern look than carpeted treads.

Thanks for all the feedback.

@Patricia Colwell Consulting - a couple of them are rough. I'm not sure what type of wood it is. If I don't cover them, I'll have to replace them.

I don't want to go back to carpet. That back room and those stairs is the last carpet in the house. I was tempted to consider just carpeting the treads (like the second post I made). I was lucky with the main house stairs, it had oak treads and I just had to clean them up.

I guess if I want oak hardwood stairs, there is no magic. Hard work or big payout.

As for existing treads, I still can't tell if they are under or butted up against the skirt boards. It doesn't make sense to do it that way, It has to just be well fitted treads. It would take a magician to cut those skirts with every level fitting so well.

One more question regarding those three odd shaped treads from the first picture. What is the typical solution? Buy extra treads and use an extra one or two cut fastened together? Or do you order a custom boards from your lumber company?

Answer to my own question, for those who are just learning like me. I need to buy/build a left hand winder tread set. Rona and many other places carry them. Done! I have no more questions/concerns with this subject. Thanks for the help.

Thanks,

Mark.