I was wondering if anyone here had some wisdom to share when finishing Red Oak stair treads. I've got a floor-grade oil-based polyurethane for the top coat, but I need to stain the treads to match the existing flooring. The one thing I noticed with the deep oak pores is that they like to collect dirt and you'll eventually see a traffic pattern on the wood (the old Oak treads had this problem). Is there an ideal method to fill or seal the grain so that this phenomenon is less likely? I bought a gallon of sanding sealer yesterday, but I'm clueless if this is what I need (and do I apply it before or after the stain?).
Thanks for any advice in advance.