You need to establish if it's solid or veneered, you can easily sand through a veneer. If you are going for a gloss finish the process is a bit more complicated as you'll want to strip any existing finish with chemicals and apply the varnish in layers, preferably with a rubber (see French polishing). If it's more country style and solid oak you could just sand and varnish but there's still a ton of things to consider and even more that can cause poor results.
Thanks! It’s solid wood. Looking for a Matt finish. It is a fairly contemporary style but I believe can just be sanded and varnished. Any particular varnish you would recommend?
You need to establish if it's solid or veneered, you can easily sand through a veneer. If you are going for a gloss finish the process is a bit more complicated as you'll want to strip any existing finish with chemicals and apply the varnish in layers, preferably with a rubber (see French polishing). If it's more country style and solid oak you could just sand and varnish but there's still a ton of things to consider and even more that can cause poor results.