Tbh, my brother keeps using the wrong sandpaper grit on our family heirloom chair. How do I handle this without starting a fight? | Furniture Finishers - The Design Community Hub
Yeah, because nothing says "I know what I'm doing" like the sound of 40-grit sandpaper on antique wood. Linda368, I admire your faith in humanity, but I've seen people try to "figure out" refinishing. It usually ends with a trip to the hardware store for wood filler and a sad story. Letting him guess is how you get a chair that feels like a cat's tongue. A quick tip on sandpaper grits isn't micromanaging, it's just saving the poor chair from an itchy future.
@linda368's idea to let him figure it out sounds good, but my friend tried that with her sibling. Her brother used coarse sandpaper on a old cabinet and it left visible scratches. I'd say nicely show him the correct grit to keep the chair safe.