The Pre-Engineered Building system (PEB) idea was first implemented in the USA after the World War II, as one of the solutions to the demand of fast economic growth (and then transferred the concept to industrialized countries). PEB system is a structure that consists of pre-designed, pre-fabricated component that are combined together and assembled structurally. Helps of computer assisted design to create a structure for specific use or unique as customer need.

Defining a PEB Building :
Pre-set methods for connecting and welding (standardized connections).
Utilization of pre-determined stock sizes.
Optimized design, detailing and fabrication, resulting in most economical (lower weight) and fast delivery (reduced engineering and fabrication time).