The most versatile and popular form of food service storage system, wire shelving can be found in just about any establishment that serves food, and while some people prefer to build their wire shelving using caster posts, wire shelving built with stationary posts is typically a more stable and economic solution. Though perhaps less versatile, stationary posts create a strong, sturdy base for your shelving and can provide a slightly larger capacity for your shelving. Additionally, if there is relatively little weight on the shelves, stationary posts still keep the unit firmly in place, where as a unit with caster posts might be accidentally bumped and moved out of place.