Segmentation by type further refines the market into mechanical lock doors, electronic lock doors, biometric lock doors, reinforced steel doors, and composite material doors. Mechanical lock doors, employing traditional deadbolts and latch mechanisms, retain a sizable share due to lower upfront costs and ease of maintenance, yet their growth is moderated by emerging electronic alternatives. Electronic lock doors—featuring keypad, RFID, or smartphone‑based access—are expanding rapidly, driven by integration with building‑management systems and demand for audit trails. Biometric lock doors, which verify users via fingerprint or facial recognition, command a premium niche, appealing to high‑security facilities despite higher installation expenses. Reinforced steel doors provide superior physical resistance and dominate sectors where impact resistance is critical, such as banks and data centers. Composite material doors, combining lightweight polymers with metal cores, are gaining traction for their corrosion resistance and design flexibility, especially in coastal or industrial settings. Each type’s market contribution is evaluated by its price point, adoption velocity, and regulatory drivers, offering a granular view of the overall market composition.