McWhirter Steel has 20 years of experience in structural steel and miscellaneous metals fabrication.

We provide a variety of services including: Design/Build, BIM Modeling/Detailing, Fabrication, Erection, and Pre Engineered Metal Buildings.

Throughout all departments we pride ourselves on our extreme attention to detail, quality control, and quick turnaround. McWhirter Steel will be a great team member for your next project.


Design Assist/Design Build

We will work closely with our engineers or yours to help bring your project to life. With every project we strive to create the most efficient and cost-effective design. We have experience... Learn More About Design Assist/Design Build

BIM Modeling/Detailing

McWhirter Steel detailers use state of the art software technology to provide accurate drawings and 3D modeling for our clients. BIM modeling and clash detection help provide a clear vision of the structure... Learn More About BIM Modeling/Detailing

Steel Fabrication

Fabrication is the heart and soul of McWhirter Steel. We are very diverse and can handle projects from almost any industry.  Learn More About Steel Fabrication


McWhirter Steel was a large union erector for many years and has had over 70 union ironworkers working throughout California. The McWhirter team has a very strong knowledge of all aspects of steel erection including... Learn More About Erection

Pre Engineered Metal Buildings (PEMB)

McWhirter Steel is a Pre Engineered Metal Building dealer for CBC Steel Buildings... Learn More About Pre Engineered Metal Buildings (PEMB)