Do you want a cleaner, more organized home? It all starts with an organized garage. Here's three ways to build your own garage shelving. These garage storage projects have been built hundreds of thousands of times by people all over the world. Question: Is it cheaper to buy or build garage shelves? Building is less expensive, and there are many other great reasons to build your own garage storage shelving, including custom sized for your totes, greater durability, and design flexibility.