Common T-slot aluminum extrusion sizes include 10×10, 20×20, 30×30, 40×40, 45×45, 50×50, 60×60, 80×80, 100×100, and 160×160 mm.
These profiles are widely used for framing and assembly in windows, doors, and structural construction.
Specific sizes vary by application, so confirm the profile with your drawings.