DIY Lesson of the Day: When in doubt, find a calculator. 😂My husband and I tackled the bookshelf build today, and let’s just say we spent way too much time trying to figure out how to space the shelves evenly. Thankfully, an online shelf calculator (www.blocklayer.com/shelf-spacingeng) saved the day—and probably our sanity. 🙌We used 3/4-inch cabinet-grade plywood for these, but if you’re looking for an easier option, 1x12 pine is a solid alternative. Either way, corner clamps are your best fri