Welcome to The Shim Shack where metal shims are what we do! With the latest equipment and technology available in the sheet metal fabrication industry, we are dedicated to producing metal parts for our customers in a quick and cost effective manner. We provide our customers the ability to customize a number of different shim types by adding custom dimensional specifications. Easy as 1-2-3! Select a shim type, enter your dimensions for each variable, and add it to your quote cart. Then submit your quote cart to Stock Mfg. & Design and a representative will contact you. Fast Turnaround! To establish ourselves as a market leader, we have implemented a system which allows us to produce custom flat sheet metal parts faster than anybody in our industry. What is a metal shim? A shim is a thin piece of material, such as wood, stone, or metal (in our case), used to fill gaps, make something level, or adjust something to fit properly. A Shim can also be used as a bracket, washer, base plate, tie, spacer, and much, much more!