Pre-Engineered Buildings (PEB) are a type of construction method where the structural components of a building are manufactured in a factory and then assembled on-site. This approach offers several advantages, including cost-efficiency, speed of construction, and design flexibility. Once the building's structure design is finalized, the structural components, such as columns, beams, purlins, and wall panels, are fabricated in a controlled factory environment.

These components are often made of steel, which is known for its strength and durability. The use of standardized components helps reduce material wastage and ensures consistency in quality.