Fab shops are manufacturing facilities equipped with welding, machining, forming, and assembly capabilities producing fabricated metal products for industrial, energy, and infrastructure applications. Shop capabilities vary widely based on equipment investments, certifications, and specializations—code shops holding ASME or API certifications, heavy fabrication shops with large-capacity equipment, precision shops with tight-tolerance capabilities, or specialized shops focusing on particular materials or industries.

Modern fab shops combine skilled workforce with advanced equipment including CNC machines, automated welding systems, large-capacity cranes and rolls, and comprehensive testing facilities. Shop layout, material handling systems, and workflow organization significantly impact productivity and quality. Leading shops maintain quality management systems, invest in workforce development, implement lean manufacturing principles, and continuously upgrade capabilities serving evolving market needs.