An aluminum door is a modern door system constructed primarily from extruded aluminum profiles. It is celebrated for its exceptional strength-to-weight ratio, durability, and sleek, contemporary aesthetic. Commonly used for exterior applications like patio doors, sliding systems, and storefront entrances, as well as in modern interior designs, its core advantages include high structural integrity, minimal maintenance, and excellent resistance to corrosion and weathering. Modern aluminum doors often feature a thermal break—a polyamide bar within the frame—which dramatically improves thermal insulation, making them energy-efficient. Their slim sightlines allow for larger glass panels, maximizing natural light and views while maintaining robustness, security, and design flexibility across residential, commercial, and industrial projects.