Industrial sectional doors are one of the most practical entrance solutions for factories, warehouses, and loading docks. They open vertically, save space, and help keep people, forklifts, and trucks moving safely and smoothly every day.   What Are Industrial Sectional Doors?   Industrial sectional doors are made of several horizontal panels that move up and down along side tracks. When the door opens, the panels slide up and rest under the ceiling instead of swinging out like a normal door.   A typical Industrial Sectional Door includes:   Strong steel or aluminum panels   Optional insulation inside the panels   Side tracks and hardware   Manual chain or electric motor to open and close   This simple structure makes the door reliable, safe, and suitable for many different industries.