Modern Builders Supply

Modern Builders Supply is a premier masonry supplier in San Marcos, California, with a legacy dating back to 1952. Originally established as Modern Block in Oceanside, the company evolved in the early 1990s when partners Bill Gibney and Ray Raub—later joined by Jim Thompson—formed Modern Builders Supply, growing it into one of San Diego County’s most trusted sources for high-quality building materials.

Today, Modern Builders Supply is a leading distributor of King Klinker thin brick, offering architects, builders, and homeowners access to one of the most distinctive and durable thin brick products on the market. Known for its rich colors, European craftsmanship, and versatility, King Klinker thin brick is ideal for both interior and exterior applications, and Modern Builders Supply provides a wide selection to suit a variety of design styles.

In addition to their strong focus on King Klinker thin brick, they carry a full range of masonry products including brick, block, stone, slate, and retaining wall systems. Their experienced and knowledgeable team is committed to helping customers select the right materials and guiding them through every stage of the project.

With decades of industry experience and a reputation for quality products and exceptional service, Modern Builders Supply is a trusted partner for anyone looking to incorporate premium King Klinker thin brick into their next project.