I don't know much about making furniture I never tried it out lol, I mostly on mobile so there don't come much use of furniture and all, but before I thought the pixel numbers were just to show but the 256×512 that's the most basic thing to understand after understanding it I could make some designs but still yeah gimp gets a little tough in precision not for tools but the way in using, like in photoshop we can hold and drag anything at anytime without needing to do undo and there is smoothness in Adobe and precise shape making, but I can't seem to find that in gimp if gimp could have flexibility of photoshop it would have been great.