As a handyman doing work for a real estate company I had my first ever repair to a staircase due to a dog chewing the nosing. All the local shops had was red oak. I needed white oak. So began the google search. It wasn’t long until I found Stair Parts USA. They had the parts I needed and delivered in a timely fashion. The nosing was perfect and looked like the original.
If I ever do a stair repair, I know where to go for parts.