Leave your tabletop longer than necessary until the sanding is done, then cut to final length. Most tabletops are too wide to trim on a tablesaw, even with a crosscut sled, and this is where I use a hand-held circular saw. Clamp a guide strip so it’s square to one edge, then follow it with your saw. Repeat the process on the other end, then carefully use your hand-held belt sander to remove any blade marks on edges. It sounds like a coarse process, but you can get great results this way.
Building a table is one of the most deceptively simple woodworking projects going. What could be easier than gluing up a few boards and applying a finish, right? But reality is often surprising, because building a top for that table can go wrong in ways you might not realize until it’s too late.  Here are my favourite tabletop construction tips, plus advice on how to avoid trouble.