In 1983, four friends decided to combine their expertise by merging their two small steel companies into one: S+H Steel. They began small, but they didn't stay that way for long. What started with a few friends in a garage, has since grown into a large, award-winning operation near the heart of downtown Gilbert, Arizona.    Today, S+H Steel has more than 100 employees who process 100 tons of steel a week for large commercial projects, government contracts, and more.    S+H Steel also holds the distinction of belonging to a small handful of steel companies in Arizona who are AISC certified in both steel fabrication and erection.