Vashon Ready Mix Plant and Aggregate Plant

With more than 130 years of experience serving contractors, engineers, and builders, CalPortland delivers high-quality aggregates and high-performance ready mixed concrete backed by technical expertise, rigorous quality standards, and reliable local service.

CalPortland’s Vashon plant proudly serves the community with landscape and construction materials locally produced and sourced.

• Wide range of products: We offer crushed rock for driveways and landscaping, washed rock for drainage and decorative applications, quarry spalls for road base and gabion baskets, as well as sand, pea gravel, ready-mix, and more.
• Serving since 1947: With deep roots in the community, we supply materials to both residential and commercial customers.
• Ready-mix concrete: The plant also produces high-quality ready-mixed concrete for the surrounding area.
• Convenient service: Call today to schedule delivery or stop by the plant for easy pickup.

What you can expect from CalPortland:

• Proven Expertise – Decades of experience supporting residential, commercial, industrial, and public works projects of every scale and complexity.
• Quality Assurance – ASTM-certified materials, robust laboratory testing, and strict quality control processes that ensure consistent performance and durability.
• Technical Support – Knowledgeable concrete specialists who collaborate with your team on mix design, troubleshooting, and constructability.
• Reliable Supply & Logistics – On-time delivery, strategically located plants, and modern fleet capabilities to keep your project on schedule.
• Customized Mix Solutions – From standard structural mixes to specialty concretes (high-strength, pervious, self-consolidating, decorative, and sustainable mixes with SCMs).
• Broad Product Selection – Full lines of crushed stone, concrete sand, masonry sand, gravel, and specialty high-performance aggregates.
• Commitment to Safety & Sustainability – Responsible operations, low-emission practices, and continuous improvement in environmental performance.

When you partner with CalPortland, you gain more than a concrete supplier–you gain a technical partner invested in your project’s success.