# Best Gravel Suppliers in Petaluma, CA in 2026: The Buyer's Shortlist

By Armen Suny (https://www.linkedin.com/in/asuny/, https://armenarmen.com) · Published 2026-02-11 · Updated 2026-10-14
Source: https://goodgravel.com/suppliers/states/california/petaluma/best

The best gravel supplier in Petaluma, CA right now is Roblar Quarry, LLC, which scores 51 of 100 on our checklist and is best for bulk orders straight from the pit. This shortlist ranks all 4 gravel suppliers we list in Petaluma using data you can check on each listing: what they stock, whether they publish prices, whether they deliver, and how easy they are to reach. Partners pay to be featured above the list, but nobody can pay for a higher rank.

## Key Takeaways

- Roblar Quarry, LLC is the top pick in Petaluma, with 51 of 100 points. It earns its place on delivery and contact details.
- 3 of 4 suppliers deliver. Delivery usually starts at one truckload, about 10 tons, so smaller jobs are often pickup only.
- No Petaluma supplier on this list publishes per-ton prices yet. Budget by calling two or three yards with your area and depth ready.
- 1 supplier is a gravel pit. Pits usually beat landscape yards on price per ton for big base-stone orders.
- No supplier here gives an instant online price yet, so plan on calling. Work out your tons first so the quote takes one call instead of three.

## What a Gravel Supplier Actually Is (and What It Is Not)

A gravel supplier sells loose stone by weight or volume: crushed stone, pea gravel, river rock, base course, and decorative rock. In Petaluma that means three kinds of business. Pits and quarries dig and crush their own stone. Landscape supply yards buy from pits and stock a wider mix in smaller piles. Building material dealers sell gravel alongside sand, soil, mulch and block.

Most sell by the ton or the cubic yard, load your trailer with a front loader, or send a dump truck. A single axle truck carries about 10 tons and a tandem 14 to 18. The price per ton drops as the order grows, and delivery is usually a flat fee by distance.

A gravel supplier is not a hardware store. Big box stores sell gravel in 0.5 cubic foot bags, which costs several times more per ton and only makes sense for a few square feet. A supplier is also not an installer. Most yards drop the stone and leave. Grading, compaction and edging are a landscaper's or contractor's job, unless the yard says it installs.

Whatever you buy, know your area and depth before you call. It is the first thing every yard will ask.

## How We Ranked These Gravel Suppliers

Each supplier is scored out of 100 from its GoodGravel listing. No supplier can pay for a higher rank; partners pay only for the featured slot above.

| Criterion | Points | How it is measured |
|---|---|---|
| Material selection | 25 | Gravel and stone types stocked, full marks at 8 or more. |
| Published prices | 25 | Share of stocked materials with a published price per ton, yard or bag. |
| Delivery | 20 | Whether the supplier delivers. Most driveway and base jobs need a truck. |
| Owner-verified listing | 15 | Whether the business owner has claimed and confirmed the listing. Claiming is free. |
| Contact details | 15 | Phone (6 points), street address (5) and website (4) on file. |

## The Best Gravel Suppliers in Petaluma in 2026

### 1. Roblar Quarry, LLC, best for bulk orders straight from the pit

Roblar Quarry, LLC is a gravel pit in Petaluma, CA at 7175 Roblar Rd, Petaluma, CA, 94952. It ranks #1 of 4 with 51 of 100 points.

It lists 5 materials: Construction Gravel, Crushed Stone, Crusher Run, Rip Rap, and River Rock. It does not publish prices, so call for a quote.

It delivers. The owner has not claimed this listing yet, so details may be out of date. To order, call (707) 835-1977 or visit roblarquarryllc.com.

Score breakdown: material selection 16/25 (5 materials listed), published prices 0/25 (0 of 5 priced), delivery 20/20 (delivers), owner-verified listing 0/15 (unclaimed), contact details 15/15 (phone, address, and website).

**Best suited for:** Driveway, road and pad jobs that need full truckloads of base stone. Contractors and rural owners pay pit prices here.

Listing: https://goodgravel.com/suppliers/states/california/petaluma/suppliers/roblar-quarry-llc

### 2. Sonomarin Landscape Materials, best for the widest selection

Sonomarin Landscape Materials is a gravel and landscape supplier in Petaluma, CA at 2500 Petaluma Blvd N, Petaluma, CA, 94952. It ranks #2 of 4 with 51 of 100 points.

It lists 5 materials: Compost, Decomposed Granite, Fill Dirt, Mexican Beach Pebble, and River Rock. It does not publish prices, so call for a quote.

It delivers. The owner has not claimed this listing yet, so details may be out of date. To order, call (707) 762-0505 or visit sonomarinmaterials.com.

Score breakdown: material selection 16/25 (5 materials listed), published prices 0/25 (0 of 5 priced), delivery 20/20 (delivers), owner-verified listing 0/15 (unclaimed), contact details 15/15 (phone, address, and website).

**Best suited for:** Projects mixing materials, like a base course under decorative top stone. One stop instead of two yards.

Listing: https://goodgravel.com/suppliers/states/california/petaluma/suppliers/sonomarin-landscape-materials

### 3. Shamrock Materials (Calmat Co dba Shamrock Materials), best for delivery

Shamrock Materials (Calmat Co dba Shamrock Materials) is a gravel and landscape supplier in Petaluma, CA at 400 Hopper Street, Petaluma, CA, 94952. It ranks #3 of 4 with 48 of 100 points.

Calmat Co dba Shamrock Materials, a Vulcan Materials Company, is the leader in sustainable concrete solutions in the North Bay, providing materials from the Golden Gate to Cloverdale since 1954!

It lists 4 materials: #8 Gravel, Bank Run Gravel, Black Shredded Mulch, and Marble Chips. It does not publish prices, so call for a quote.

It delivers. The owner has not claimed this listing yet, so details may be out of date. To order, call +1 707-792-4695 or visit www.shamrockmaterials.com.

Score breakdown: material selection 13/25 (4 materials listed), published prices 0/25 (0 of 4 priced), delivery 20/20 (delivers), owner-verified listing 0/15 (unclaimed), contact details 15/15 (phone, address, and website).

**Best suited for:** Homeowners without a truck or trailer. Ask for the minimum load before you order.

Listing: https://goodgravel.com/suppliers/states/california/petaluma/suppliers/shamrock-materials-calmat-co-dba-shamrock-materials

### 4. Lind Marine, best for local pickup

Lind Marine is a gravel and landscape supplier in Petaluma, CA at 300 E D St, Petaluma, CA, 94952. It ranks #4 of 4 with 21 of 100 points.

Lind Marine is a family-owned marine services provider established in 1906, based in Petaluma, California. The company specializes in marine construction, dredging, environmental remediation, tug and barge operations, and shipyard services, primarily serving the San Francisco Bay, Delta, Sacramento, and San Joaquin Rivers regions. With a fleet of over 30 barges and tugboats, Lind Marine emphasizes eco-friendly bulk material transport, having...

It lists 2 materials: Bank Run Gravel and Jersey Shore Gravel. It does not publish prices, so call for a quote.

It is pickup only, so bring a truck or trailer. The owner has not claimed this listing yet, so details may be out of date. To order, call +1 707-762-7251 or visit www.lindmarine.com.

Score breakdown: material selection 6/25 (2 materials listed), published prices 0/25 (0 of 2 priced), delivery 0/20 (pickup only), owner-verified listing 0/15 (unclaimed), contact details 15/15 (phone, address, and website).

**Best suited for:** Small jobs you can haul yourself with a pickup or trailer. Usually the cheapest way to buy a yard or two.

Listing: https://goodgravel.com/suppliers/states/california/petaluma/suppliers/lind-marine

## Side-by-Side Comparison

| # | Supplier | Score | Best for | Materials | Lowest price | Delivery | Type | Instant price | Verified |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Roblar Quarry, LLC | 51/100 | bulk orders straight from the pit | 5 | Call | Yes | Pit | No | No |
| 2 | Sonomarin Landscape Materials | 51/100 | the widest selection | 5 | Call | Yes | Yard | No | No |
| 3 | Shamrock Materials (Calmat Co dba Shamrock Materials) | 48/100 | delivery | 4 | Call | Yes | Yard | No | No |
| 4 | Lind Marine | 21/100 | local pickup | 2 | Call | Pickup | Yard | No | No |

## Which Gravel Supplier Fits Your Project

| Your project | Start with | Why | Also try |
|---|---|---|---|
| Driveway, pad or road base by the truckload | Roblar Quarry, LLC | Pit pricing on bulk base stone | Sonomarin Landscape Materials |
| Decorative landscaping rock | Roblar Quarry, LLC | 5 materials to choose from | Sonomarin Landscape Materials |
| Delivered to a home with no truck | Roblar Quarry, LLC | Delivers | Sonomarin Landscape Materials |
| Pricing a project before you commit | Roblar Quarry, LLC | Publishes prices (0 of 5 priced) | Sonomarin Landscape Materials |

## Frequently Asked Questions

### What is the best gravel supplier in Petaluma?

Roblar Quarry, LLC ranks first on our Petaluma shortlist with 51 of 100 points, and is best for bulk orders straight from the pit. The right pick still depends on your job, so check the use case table before you call.

### How much does gravel cost in Petaluma?

Most Petaluma suppliers here quote by phone, so there is no published local range yet. Base stone usually costs less per ton than decorative rock, and delivery is extra.

### Which Petaluma gravel suppliers deliver?

3 of the 4 suppliers on this list deliver. Expect a minimum of about one truckload, which is 10 tons on a single axle truck and up to 18 on a tandem.

### What is the difference between a gravel pit and a landscape yard?

A pit sells straight from its own stockpile in bulk, so the price per ton is usually lower. A landscape yard buys from pits and sells smaller amounts of more kinds of rock. 1 supplier on this list is a pit.

### How can I get a gravel price in Petaluma without calling around?

None of the Petaluma suppliers on this list offer an instant online price yet, so call or email for a quote. Have your area, depth and delivery address ready and the yard can price it in one call.

### How much gravel do I need?

Multiply length by width by depth in feet and divide by 27 for cubic yards, then multiply by about 1.4 for tons. A 12 by 50 foot driveway at 4 inches deep needs about 7.4 cubic yards, roughly 10 tons.

### How did GoodGravel rank these suppliers?

Each supplier is scored out of 100 on material selection, published prices, delivery, owner-verified listing, and contact details. Partners pay to be featured above the list and are labelled, but no supplier can pay for a higher rank. Scores update whenever a listing changes.

## Get Free Gravel Quotes in Petaluma

Measure your project once with the free Gravel Planner and send it to Petaluma suppliers that deliver: https://goodgravel.com/gravel-planner