The feature of worktables: 1. Top: 18gauge 304 stainless steel is standard. 16gauge 304STS, 18gauge 430STS and 16gauge 430STS are Optional. Sqaure edge or bull-nose edge. 2. Undershelf and hat channel: 18 gauge galvanized. 18gauge 304STS and 18gauge 430STS are optional. Undershelf with leg ring is standard. Undershelf with aluminum die cast clampl Is optional. 3. Legs: 1-5/8" diameter tubular galvanized pipt is standard. 1-5/8" diameter tubular stainless steel leg is optional. 4. Leg socket and leg ring: 16gauge galvanized is standard. 16gauge 304STS is optional. 5. Adjustable feet: 1" plastic or metal adjustable feet.