Metal profiles are often used in engineering for what purpose?

Metal profiles are commonly used in engineering primarily to provide structural support. This is due to their strength, durability, and ability to withstand various stresses and loads. They are essential in constructing frameworks for buildings, bridges, and other structures where reliability and stability are critical. Metal profiles can be used in various shapes, such as beams, columns, and frames, which are specifically designed to distribute loads and support other materials effectively.

The use of metal profiles is vital in ensuring the integrity of structures, as they contribute to the overall strength and stability, making them a fundamental component in engineering design. Other purposes, such as storing energy, illuminating spaces, or lubricating parts, do not align with the primary functionality of metal profiles in structural applications, hence they are not considered the main reason for their use in engineering.