A 10x12 handles a desk, chair, and bookshelf with room to move. That's your solo-focused-work setup. If you need a standing desk, a second monitor, filing space, or room for the occasional client visit, go 12x16 or bigger.
Think about what your workday actually looks like. If you're on video calls, you want enough depth behind you to not look like you're sitting in a closet. If you're spreading out plans, samples, or materials, you need table space. Size up based on how you'll actually use it, not just what fits on paper.
