Enhance your landscape with the natural elegance of Greenbrae Gray Pebble — a premium 1" to 3" smooth river rock named after the scenic town of Greenbrae in Marin County. This hand-selected river stone features a calming blend of soft grays, coastal blue undertones, and subtle earthy highlights, offering a clean, timeless look for both modern and rustic outdoor designs.
Ideal for homes and commercial properties throughout San Rafael, Petaluma, Napa, Santa Rosa, and Vallejo, Greenbrae Gray brings natural sophistication to any project. Its rounded edges make it safe for walking surfaces, yet its weight and size keep it in place during heavy rains or irrigation.
Common Applications in North Bay Landscapes:
Dry creek beds and drainage swales in Mill Valley, Novato, and Benicia
Tree rings, garden borders, and shrub accents in Fairfield and Glen Ellen
Decorative rock mulch alternative in front yards and medians
Zen gardens, water features, and low-maintenance planter beds
Erosion control on slopes and around downspouts
Delivery Service You Can Count On
Delivered directly to your driveway or job site. We proudly serve Marin, Napa, Sonoma, and Solano Counties, including residential hillsides and tight-access neighborhoods.
Product Details:
Size Range: 1" to 3" +/-
Type: Smooth, naturally weathered river rock
Color: Primarily gray with blue-gray and green accents
Finish: Washed and rounded — no sharp edges
Packing: Sold in 40 lbs. bags only (55 bags/pallet ~ 100 sq ft)
Material Coverage Chart
10 bags ~ 18 sq ft
20 bags ~ 35 sq ft
30 bags ~ 55 sq ft
40 bags ~ 70 sq ft
50 bags ~ 90 sq ft
NOTE - coverage varies by install depth
Low Maintenance & Eco-Friendly
Greenbrae Gray is a long-lasting, permeable ground cover that helps suppress weeds, retain soil moisture, and reduce water runoff — a smart choice for sustainable landscaping across Northern California.
Bulk Delivery Available in Marin, Sonoma, Napa & Solano Counties
Frequently Asked Questions – Greenbrae Gray Pebble
Q: What size are Greenbrae Gray Pebbles?
A: These smooth, hand-selected river rocks range from approximately 1" to 3" (nominal) in diameter. Their naturally rounded edges make them appear attractive and easy to place in garden or landscape designs.
Q: How much area does one bag cover?
A: A single 40-lb bag of Greenbrae River Rock covers about 1.5–2 sq ft at a 2" depth. A full pallet of 55 bags covers roughly 90–100 sq ft depending on layout and install depth.
Q: Are Greenbrae Gray Pebbles suitable for walkways and patios?
A: Only for occasional walking; they are best for decorative accents, tree rings, and light-traffic walkways rather than heavy-traffic or load-bearing areas.
Q: Do the stones change color when wet?
A: Yes. The natural gray tones deepen, and subtle blue-gray and green accents become more pronounced, adding visual richness around water features and creek beds.
Q: Can I use these pebbles for erosion control?
A: Absolutely. Their weight and size make them excellent for stabilizing slopes, drainage swales, and areas around downspouts.
Q: Where do you deliver Greenbrae Gray Pebbles?
A: We deliver across Marin, Sonoma, Napa, and Solano counties—including San Rafael, Novato, Santa Rosa, Napa, Vallejo, and surrounding North Bay communities. Note - this product can also be shipped all over California via LTL freight.