How to put hardwood on my existing stairs? There is a 1.5" tread under the carpet, want to cover it with wood

Question:

Answers:
Hardwood flooring is designed with a tongue and groove on either side. If you placed it on a stair case, there would be no way to hide either the tongue or the groove. The best way to get a hardwood tread is to purchase the tread in the hardwood form. Check your local hardware store (Home Depot) for these treads. If need help installing, just ask.
Good Luck.