UK centric because this is probably related to dampness in the room which I am guessing is a common issue for a lot of us. One of my doors has, I can only describe as, swelled up such that it doesn’t close snuggly. I’m guessing it’s because of the moisture it’s taken on or something. It just hits against the door frame. So whilst it is “closed” it never really fits into the frame and you can see gaps around the edges. I should mention the door is wood. No idea what type, it’s fairly light so cheap wood I think 🤔.

What’s the best thing to do here? Sand it down? Any tips on that? I’ve never done that before. Repaint after sanding? Get one of those furry door strips to stop heat leaking through the newly sanded door? Should I leave it because I might do more damage than its worth in the long run?

Cheers.