Napa Valley Boulders for Landscaping — Bulk Delivery in Marin, San Mateo and Surrounding Areas.
Premium Natural Boulders Sourced from Napa Valley, Delivered Quarry-Direct to Your Project
Transform your outdoor spaces with authentic Napa Valley Boulders—a signature stone known for its warm, earthy tones and rugged texture that complements Wine Country landscapes beautifully. North Bay Materials supplies and delivers high-quality boulders in a range of sizes for retaining walls, hillside stabilization, decorative accents, water features, property entrances, vineyard design, and large-scale landscaping.
Whether you’re a homeowner improving your yard, a contractor working on a hillside project, or a winery designing a premium landscape, we deliver the exact boulder sizes you need—straight to your property anywhere in Napa County and the North Bay region.
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Dump truck delivery
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3–24 ton loads
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Local Napa Valley sourcing
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Fast turnaround & competitive pricing
Napa Valley Boulder Colors, Sizes & Specifications
Napa Valley Boulders feature a warm, rustic California palette—a natural blend of tan, golden beige, sandy brown, and weathered gray undertones. Each stone carries subtle mineral veining and sun-baked surface textures that create an authentic Wine Country look. The angular but rounded-off edges make these boulders ideal for decorative and structural landscape applications.
This color range pairs beautifully with Mediterranean landscapes, native California plantings, vineyard settings, hillside homes, and modern architectural designs.
Available Boulder Sizes
We supply Napa Valley Boulders in multiple size classes to suit decorative, structural, and engineered projects:
18–36" Landscape Boulders (~100–800 lbs each)
Ideal for:
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Decorative landscape accents
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Dry creek beds & water features
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Garden focal points
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Medium retaining applications
Appearance: Easily maneuverable with small equipment; consistent warm tan & beige tones with natural quarry texture.
HALF-Ton Boulders (~1,000–1,800 lbs each)
Ideal for:
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Feature stones in front yardsWinery & ranch entries
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Accent grouping
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small slope support
Appearance: Larger, more dominant presence with visible weathered faces and a mix of sandy-brown and gray highlights.
ONE-Ton Boulders (~1,800–3,000 lbs each)
Ideal for:
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Retaining wall installations
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Terracing & erosion control
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Large decorative placements
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Commercial landscaping
Appearance: Massive, angular pieces that create bold structure; surfaces show a golden-tan finish with natural fractures and mineral streaks.
TWO-Ton Boulders (~3,000–5,000 lbs each)
Ideal for:
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Major retaining walls
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Hillside stabilization
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Architectural entry features
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Winery + estate-scale landscapes
Appearance: Statement-sized boulders with multi-sided faces, rugged texture, and uniform tan/beige coloration typical of Napa Valley geology.
Why Choose Napa Valley Boulders?
Napa Valley Basalt Boulders are one of the most sought-after natural stones for upscale landscape design across Wine Country—and for good reason. Their appearance, durability, and regional authenticity make them the perfect material for both residential and commercial projects.
Authentic Wine Country Aesthetic
Sourced directly from Napa Valley, these basalt boulders feature the region’s signature tan, golden beige, and weathered gray hues—a natural, warm palette that blends seamlessly with vineyards, hillside estates, oak woodlands, and modern California architecture. They instantly give any project a premium, local, and timeless look.
Extremely Durable & Long-Lasting
Napa Valley Basalt Boulders are naturally formed, dense stones capable of withstanding:
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Harsh weatherErosion
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Heavy weight loads
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Steep terrain
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Waterflow exposure
Perfect for retaining walls, stabilizing slopes, or anchoring decorative landscapes for decades.
Ideal for Both Decorative & Structural Use
Thanks to their size variety and natural strength, Napa Valley Boulders are used for:
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Retaining walls & terraced slopes
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Driveway and property entry features
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Waterfalls, dry creek beds & ponds
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Vineyard landscaping & winery design
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Native & Mediterranean gardens
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Boulder groupings and focal points
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Erosion control & hillside reinforcement
They are versatile enough for anything from simple garden accents to full structural installations.
Locally Sourced = Lower Cost & Faster Delivery
Because these boulders come from within Napa Valley, they offer:
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Lower transportation costs
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Faster turnaround
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Better availability compared to imported boulders
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Reduced environmental footprint
Local stone also supports local projects—keeping your landscape consistent with real Napa Valley geology.
Matches Perfectly with Other North Bay Materials
These boulders pair beautifully with:
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California Native Plants
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Mediterranean plants
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Warm-toned hardscape materials
Ideal for unified outdoor designs that feel connected and natural.
Napa Valley Boulder Delivery Information
At North Bay Materials, we make it easy to get high-quality Napa Valley Basalt Boulders delivered directly to your home, job site, ranch, vineyard, or commercial property anywhere in Northern California. We use dump trucks and provide professional placement guidance to ensure a smooth delivery experience every time.
Delivery Areas for Napa Valley Boulders
We proudly deliver throughout:
North Bay
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San Rafael
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Novato
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Petaluma
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Santa Rosa
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Healdsburg
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Mill Valley
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Sausalito
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Bodega Bay
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Glen Ellen & Kenwood
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Sebastopol
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Windsor
Expanded North Bay Service
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Alameda County
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San Mateo County
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San Francisco County
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Contra Costa County
If you’re outside these zones, we can still help—simply submit a quote request.
Minimum & Maximum Boulder Quantities
Because boulders vary in size and weight, delivery load limits depend on the size category you select:
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18–36" Boulders: 30–50 pieces per load
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½-Ton Boulders: 25–40 pieces per load
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1-Ton Boulders: 15–25 pieces per load
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2-Ton Boulders: 10–15 pieces per load
All deliveries are based on weight, not piece count.
Tip: you can order mixture of weight sizes.
Dump Truck Delivery Details
Our delivery service is designed for safety first:
Take caution when getting boulders dumped. Put down plywood or few inches of dirt or sand to prevent damage to the pavement
Truck Capacity
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Maximum payload: up to 24 tons (dump site access-dependent)
Delivery Type
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Standard dump delivery
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No crane or forklift service (customer must arrange equipment if needed)
Dump Spot Requirements
To ensure safe unloading, we require:
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A flat, accessible, safe surface
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Adequate overhead clearance
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Sufficient turning space for the truck
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No soft ground or hazards
Final dump location is at the driver’s discretion for safety.
Delivery Cost
Delivery is billed as a time & distance–based rate:
Standard Rate: $150/hour (round-trip)
Total cost depends on:
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Pickup location
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Delivery address
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Load size
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Drive time and traffic
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Difficulty of access
A final price will be provided on your quote or invoice before delivery.
How to Order
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Request a quote online
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Choose your preferred boulder size(s)
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Provide your delivery address
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We calculate load size + delivery time
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Confirm payment
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Materials arrive on your scheduled day
Same-day and next-day delivery may be available depending on availability & delivery address.
Frequently Asked Questions (FAQ) - Napa Valley Boulders
Q1. What size Napa Valley Boulders should I choose for my project?
It depends on your application:
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18–36" Boulders (100–800 lbs): Best for decorative accents, dry creek beds, native gardens, and medium-sized features.
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½-Ton Boulders (1,000–1,800 lbs): Great for front-yard features, entry accents, and medium retaining walls.
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1-Ton Boulders (1,800–3,000 lbs): Ideal for structural retaining, hillside terracing, large focal points and commercial installation.
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2-Ton Boulders (3,000–5,000 lbs): Perfect for major slope stabilization, estate entrances, winery landscapes, and engineered walls.
If you’re unsure which size fits your project, we can recommend the best option based on photos or measurements.
Q2. How many boulders fit on one delivery load?
Load limits depend on size:
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18–36" Boulders: 30–50 pieces per load
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½-Ton Boulders: 25–40 pieces per load
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1-Ton Boulders: 15–25 pieces per load
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2-Ton Boulders: 10–15 pieces per load
All loads are weight-based and capped at 17 tons maximum payload per delivery truck.
Q3. Do you offer placement or crane services?
We provide standard dump delivery only.
For precision placement (e.g., hillside settings, walls, or tight backyards), you’ll need:
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A skid-steer
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Mini-excavator
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Forklift
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Crane service (if required)
We can recommend local operators if needed.
Q4. What areas do you deliver Napa Valley Boulders to?
We deliver throughout:
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Napa County: Napa, American Canyon, Yountville, St. Helena, Calistoga, Rutherford, Oakville, Angwin
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North Bay Counties: Sonoma, Marin, Solano
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Alameda & Contra Costa county
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Extended service areas require quote submission
Q5. How do I prepare my property for delivery?
To ensure a safe and successful drop-off:
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Clear vehicles and obstacles from the dump zone
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Confirm flat, solid, accessible ground
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Put down plywood or few inches of dirt or sand to prevent damage to the pavement
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Ensure overhead clearance (wires, trees, eaves)
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Keep pets and people away from the delivery area
Final dump location is chosen by the driver for safety.
Q6. What do these boulders look like?
Napa Valley Boulders feature:
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Warm tan, golden beige, and sandy brown tones
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Subtle gray and weathered mineral streaks
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Natural angular faces with rugged quarry texture
Ideal for blending into Wine Country landscapes and California native designs.
Q7. How soon can you deliver?
Most boulders are available for same-day or next-day delivery depending on scheduling and material availability.
For large orders (10–24 tons), we recommend placing your order 1–2 days in advance.
Q8. Can I mix different boulder sizes in one delivery?
Yes—mixed sizes can be combined as long as the total load stays under 24 tons.
This is ideal for natural groupings and multi-layered designs.
Q9. Do you offer project estimates or help calculating quantities?
Yes. Provide us with:
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Photos of your site
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Dimensions of your project area
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Desired boulder size
We’ll help estimate tonnage and recommend the right sizes for your project.
