We live in a 1924 home with very heavy thick oak woodwork thru out. It also has oak floors, quarter sawn in narrow strips, that In most rooms are in need of refinishing. We had a professional come & take a look yesterday, she said the flooring is too thin to sand & refinish. I was shocked, the floors have never been refinished. I was so disappointed. What can be done, if anything? We also have extended our kitchen & wanted to put oak flooring down to match the rest of the house. She said they don’t make this thickness anymore & the new flooring would be much thicker, therefore making it higher than the dining room that opens to it. Hardwood Floor
Put on gloves, knee pads, and protective eye glasses. You'll be working diligently on your hands and knees for hours to complete this project, especially if you're doing a large space. Invest in a good pair of knee pads to protect your knees. Sturdy work gloves will protect your hands from splinters, and goggles will prevent sawdust and other debris from getting into your eyes.
If you get a second opinion and they can’t be refinished, then your best option will be replace them…or wait until you can replace them. Given when the house was built I’m doubting the floors are even, so putting a floating on top will be a really bad option as they will wobble. And, installing wood on top of thin wood is a really bad solution. If your foundation is weak, your floor will be weak and it will creak and separate. Denver Hardwood Floor Install
There are some characteristics that are common to each category: solid wood is more frequently site-finished, is always in a plank format, is generally thicker than engineered wood, and is usually installed by nailing. Engineered wood is more frequently pre-finished, has bevelled edges, is very rarely site-finished, and is installed with glue or as a floating installation.  Hardwood Floor
No matter what type of hardwood flooring you choose, proper care and maintenance will help them look beautiful even longer. First off, don’t let the dirt and dust collect. At least once a week, you’ll want to go over your hardwood floors with a broom or dust mop to pick up any dirt, dust, hair or pet dander. If you’re using a vacuum, make sure it’s set to ‘wood floors’ so that you’re not beating up your floors and damaging them in the process. Hardwood Floor