South Coast Lumber produces Douglas fir lumber products for framing, timbers, industrial use, and general construction. Golden State Lumber and Showroom helps construction professionals and homeowners find South Coast Lumber Co. lumber products for framing, timbers, boards, structural work, and general construction in Northern California.





We built our first sawmill in the early 1950s and have continuously upgraded the facility in response to changes in market demand and effective resource management.
In 2006, we built a new modern, fully computerized and optimized sawmill to efficiently process smaller second growth logs. This new facility can process roughly four times the volume with one third the previous workforce. It remains one of the most efficient sawmills in the world. Our manufacturing quality is second to none, and we welcome you to compare the famous Socomi brand quality to any other lumber produced.
Visit one of our 8 Northern California Showrooms. Request an appointment.
Find technical specifications, installation guides, warranty information and more. Simply search by brand or product category to refine your search and access the support you need. Can’t find what you’re looking for? Contact your Golden State Lumber + Showroom professional.
Got questions? We’ve got you—check out our quick answers below.
Golden State Lumber has been serving Northern California builders, contractors, architects, and homeowners for decades. We combine quality building materials with knowledgeable service to help customers find the right products and solutions for projects of every size.
Many customers return because they value consistent service, knowledgeable support, and access to quality building materials and trusted brands. Our goal is to build long-term relationships by helping customers complete successful projects, no matter the size.
If you don’t see the product you need, contact our team. Through our extensive supplier network, we can often source specialty, custom, and hard-to-find products and help you find the best solution for your project.