What are the different sizes and shapes of aluminum profiles used for windows and doors?

Aluminum profiles for windows and doors come in a variety of sizes and shapes to accommodate different architectural designs and functional requirements. Common profiles include rectangular tubes for frame construction, square or rectangular profiles for sashes, and L-shaped profiles for corners. Sizes can range from thin, lightweight profiles suitable for residential use to heavy-duty, large-scale profiles for commercial applications. Shapes can be customized to fit specific window styles such as casement, sliding, or fixed, with dimensions varying from a few millimeters to several centimeters in width and thickness. The profiles are designed to provide structural integrity, weather resistance, and aesthetic appeal, with the ability to be combined in various configurations to create the desired window or door system.