Capitol Steel Structures is a full-service, AISC Certified Steel Fabrication and Erection company committed to delivering the highest quality workmanship required in this competitive marketplace. Established in South Florida in 1973, our company provides detailing, design, fabrication and erection of structural steel and other metals, delivered and installed on time. Our experienced specialists will visit your job site, access your structural needs and together with our team of engineers, design a solution.