Refinishing 1950s bungalow floors: oil- or water-based polyurethane and tips

[Larry_R]

I'm tackling my first major DIY home improvement project by refinishing the original hardwood floors in my 1950s bungalow, and I've hit a snag after sanding down to bare wood. I'm unsure whether to use a water-based or oil-based polyurethane for the final finish, as I've read conflicting advice about durability, drying time, and the potential for yellowing over time. For experienced DIYers who have refinished floors, what was your finishing process and product choice? How did you handle the challenge of applying a consistent coat in a large, open room without leaving lap marks or dust nibs, and do you have any crucial tips for the final sanding between coats that you learned the hard way?