welcome to the site! MY shop is 24x42 (outside) but is partitioned off on one end. My 58 Viking 60 fits inside but, I have so much junk in the shop, I can barely move around it. I also have to choose, do I want to be able to get past the front or back of it! I can't do both. You may think about building your shop in such a way that you can expand it later if needed, or at least add a loft for some storage!
