What are the specifications and measurements of aluminum profiles commonly used in building frames?

Aluminum profiles used in building frames come in various specifications and measurements. Commonly, they include I-beams, T-profiles, and C-channels with different thicknesses and dimensions. Sizes can range from 30mm to 200mm in width and from 1mm to 10mm in thickness. The length of these profiles can vary, but they are often available in standard lengths such as 6 meters. Specific dimensions and tolerances are determined by the building's design requirements, load-bearing needs, and manufacturing standards. It's also important to consider the alloy type, which can affect strength and corrosion resistance. Always consult with an engineer or supplier for the exact specifications suitable for a particular project.