4. overhead storage. if you�re not ready to invest the time and money it takes to build a loft in your garage, overhead storage units are a great compromise. suspended shelving just above the garage doors provides out-of-the-way storage space without the messy remodel.. So joe�s quick, easy-on-the-wallet solution was to build simple diy garage shelves that could hold plastic storage bins. he built the whole project in less than a day, and it cost him $300 for 26 ft. of shelving (the bins were extra).. All garage envy tool storage cabinets are built to last, being constructed to a one-inch thickness with a solid back. this type of cabinet construction allows you to place our cabinets on cinder block, bare stud walls, or on rough standard drywall..