Construction supplies range in quality and performance level. Construction grade supplies are typically categorized by its structural integrity. First, they need to meet the minimum standards of structural integrity needed. Construction grade lumber needs to safely support other building materials to make a secure wall. It may not have a beautiful finish, but it must be capable of handling a load. While most construction workers wear tool belts, it is not the same for mechanics. Some professional mechanics prefer using belts for access to tools, while others find the belts get in the way. In a majority of cases, choosing to wear a belt comes down to an individual’s personal preferences.