I don't want to replace my staircase but it is in some ruff shape. The stairs are made of soft wood and was painted brown originally. I am planning on sanding them down as much as I can but since the treads have a slight ripple effect to them from years of use I am planning on filling them to make them smooth. I have scene and heard about using auto body filler to fill in wood, for it is stronger then wood filler. I have read online about Bondo Rotten wood, but I can’t get it here (Huntsville, ON). My concern is the expansion of the wood and will the auto body filler pop out over time? I am then planning on using an oil based paint black and use a few coats of veratane to make them shinny and durable. I think that the stairs are going to be slippery now though. These stairs are leading up from my front door. I have installed dark hardwood floors though out my main floor.
Any budget friendly ideas would be appreciated!