Mon – Fri, 6am – 5pm
January 1st – New Year’s
May 25th – Memorial Day
July 3rd & 4th – Independence Day
September 7th – Labor Day
November 26th & 27th – Thanksgiving
December 25th – Christmas
Our Concord lumberyard and showroom supports builders, contractors, and project teams throughout central Contra Costa County. Convenient for jobs in Concord, Walnut Creek, Pleasant Hill, Martinez, Clayton, Lafayette, and surrounding East Bay communities, this location helps customers source materials quickly and get back to the jobsite with confidence.
With a drive-through lumberyard, full hardware store, on-site milling services, and showroom displays for windows, doors, moulding, and trim, Concord brings practical support and product guidance together in one local resource.
Whether you are framing a home in Walnut Creek, managing a remodel in Pleasant Hill, sourcing hardware for a Concord jobsite, or comparing window and door options for a Lafayette project, our team helps with material coordination, cuts, pickup, delivery, and solution-first support.
Why Golden State Lumber: Simpson Strong Tie
TimberTech Decking available at Golden State Lumber
Festool at GSL Concord and San Rafael
Marvin Windows and Doors
TimberTech Decking
Trex Refuge Promo
W.U.I Approved Products Available at Golden State Lumber + Showroom
Everything You Need For The Job
Got questions? We’ve got you—check out our quick answers below.
From materials to services, we support every phase of your project.
Structural and finish materials from trusted manufacturers, supporting projects from foundation to final detail.
High-performance window and door solutions selected for design flexibility, energy efficiency, and long-term durability.
Expert support, advanced logistics, and project coordination designed to keep builds moving efficiently.
Structural and finish materials from trusted manufacturers, supporting projects from foundation to final detail.
High-performance window and door solutions selected for design flexibility, energy efficiency, and long-term durability.
Expert support, advanced logistics, and project coordination designed to keep builds moving efficiently.
