

ABOUT US
From Lumber Yard Roots to Prefab Results
Fullerton Building Systems is a third-generation, family-owned company that has been helping businesses build smarter since 1882. What began as a network of 115 lumber yards has grown into a leader in custom prefabricated building systems.
But our story isn’t just about longevity—it’s about knowing when to change.
More than 60 years ago, we made a bold move that would define our future. We sold off the lumber yards and planted our roots in prefabrication—manufacturing building components off-site to streamline construction and accelerate timelines.
Even through decades of change, our focus has remained the same: quality work, consistent results, and strong customer relationships. Today, we’ve added another key advantage—speed—giving our customers a faster path to market so they can open sooner and start generating revenue faster.
Our Values

Family First
We believe our team delivers the best results for our customers when they have a healthy work life balance.

Transparency & Candor
In today’s high-paced world, there is no time for ambiguity or lack of clarity. We pride ourselves on communication that is transparent, honest and straight.

Passion & Humility
The passion to delight our customers through speed and quality, and the humility to understand how much we have to learn to improve, evolve and innovate.

Laughing is Required
We take our work seriously, but understand that the optimal culture blends hard work with humor.
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