Rip Rap SLP Rock is an angular, heavy-duty stone designed for slope protection, erosion control, and drainage applications. Available in 3–24"+ sizes, this durable material stabilizes embankments, shorelines, and culverts. North Bay Materials delivers Rip Rap across Marin, Napa, Sonoma, and Solano counties with fast local dump-truck service.

Discover why drain rock is one of the most versatile materials for landscaping and construction across Marin, Napa, Sonoma, and Solano. From French drains and driveways to erosion control and decorative creek beds, North Bay Materials delivers the right size rock straight to your project site.

Learn what Class 2 base rock is and how to use it in driveways, roads, and patios. Now delivering ¾″ road base by the yard in Napa, Vallejo, Benicia, and surrounding cities.

Discover how North Bay Materials makes bulk landscape material delivery fast, easy, and local for homeowners and contractors in Marin, Sonoma, Napa, and Solano. From gravel and mulch to sand and soil—we deliver what your outdoor project needs.