Door options include: Insulated sectional doors: for climate controlled environments, or those that want window light. Highly durable and long-lasting. Uninsulated sectionals: lighter gauge commercial garage doors that are economical yet very durable Rolling service doors: very durable and highly secure; made of aluminum or steel slats or grilles; great for smaller spaces where sectional doors can't be installed. Fire doors: Like rolling doors, they are for buildings that require a listed fire door in a rated fire wall. These automatically close in relation to fire alarms and smoke detectors. Traffic doors: curtains made of heavy-duty fabric that can withstand constant use and are fast to open.