Currently renovating two large oak staircases from the 1950s. I have removed an old carpet and bad pieces of old 10mm floor skirting from the edges of one, while the other is original with bad skirting that I intend to remove.
What has emerged is a large gap between the staircase and the wall. The lip has also been notched out to fit the skirting in multiple places. I initially planned to sand thoroughly and then stain and varnish to preserve the character of the oak. But it's not easy to piece together skirting or quarter round in all the angles. So I'm considering filling the large gaps with plastic padding and sealing tightly, and then painting the entire staircase, but it feels a bit of a shame.
What would you do? Grateful for tips. Attaching pictures with the conditions. Skirting with gaps remaining in one of the staircases. I would also like tips on good and durable paint for a wooden staircase. Is there, for example, epoxy paint for wood that is suitable?