Common types of commercial doors include glass doors, which are often used for storefronts to provide visibility and natural light; metal doors, known for their durability and security, ideal for industrial settings; and hollow core doors, commonly found in offices due to their affordability. Sliding doors are suitable for limited spaces, while roll-up doors are ideal for warehouses, offering easy access for large openings. Each type is designed to meet specific needs in terms of functionality, security, and aesthetics in various environments.