Delphi Quarry: Rock Sales in Olympia, Washington
Your Go-To Source for Quality Aggregates in Olympia
Delphi Quarry, located in the heart of Olympia, is your premier destination for high-quality rock products and aggregates. Whether you’re a contractor working on a large-scale project or a homeowner tackling a weekend DIY endeavor, when you are looking for rock sales in Olympia, we provide the materials you need to bring your vision to life.
Why Choose Delphi Quarry for Rock Sales?
Ease of Purchase and Top-Notch Customer Service
At Delphi Quarry, we simplify the process of acquiring aggregates for your projects. From initial consultation to post-delivery follow-up, our team is here to assist you at every stage. Our commitment to customer satisfaction sets us apart.
Locally Sourced and Quality Checked
We take pride in sourcing our materials locally to guarantee sustainability and superior quality. Every batch of rock undergoes rigorous quality control measures, ensuring consistency and excellence in every product we supply.
Delphi Quarry Rock Products and Their Uses
Comprehensive Product Line
Delphi Quarry provides an extensive selection of rock products tailored to meet various construction, landscaping, and infrastructure needs. Here’s an overview of our products:
Product Name |
Description |
Ideal Uses |
5/8″ Minus |
Crushed gravel with fine particles |
Driveways, pathways, and base layers |
1-1/4″ Minus |
Medium-sized crushed gravel |
Road construction and compacted bases |
2-1/2″ Minus |
Larger crushed gravel |
Structural fill and large base layers |
3/4″ Clean |
Washed gravel with no fines |
Drainage systems and decorative landscaping |
6”-12” One Man |
Large boulders |
Retaining walls and erosion control |
1’-2’ LL Rip Rap |
Large angular stones |
Shoreline protection and slope stabilization |
Pit Run |
Unprocessed gravel |
General fill and large-scale earthworks |
Highlighted Products
3/4″ Clean
Perfect for drainage and decorative landscaping, 3/4″ Clean is free of fines, ensuring efficient water flow and a polished aesthetic for outdoor spaces.
6”-12” One Man
These substantial rocks are ideal for building retaining walls or protecting shorelines from erosion. Their durability and size make them a versatile choice for large-scale projects.
1-1/4″ Construction Grade
Designed for construction bases, this product offers excellent compaction and strength, making it suitable for roadwork and foundation layers.

Quarry Location and Area Served
Conveniently Located in Olympia, WA
Delphi Quarry is situated on Delphi Rd SW, just a short drive from downtown Olympia. This central location allows us to efficiently serve the surrounding communities.
Areas We Serve
- Olympia
- Tumwater
- Lacey
- Yelm
- Shelton
Whether you’re working on a project in a bustling urban area or a serene rural setting, Delphi Quarry has you covered.
Olympia, Washington: Aggregate Project Inspiration
Transforming Downtown Spaces
Inspired by Olympia’s vibrant downtown? Use our aggregates to infuse a touch of urban sophistication into your outdoor spaces. From modern patios to sleek pathways, our products can elevate your designs.
Enhancing Natural Landscapes
For those in rural or suburban areas, our range of rock products can help you create naturalistic landscapes that blend seamlessly with the environment.

Frequently Asked Questions (FAQs)
1. Are the materials at Delphi Quarry locally sourced?
Yes, all our materials are locally sourced to ensure high quality and sustainability.
2. What is the best rock for driveways?
For driveways, we recommend 5/8″ Minus, as it compacts well and provides a durable surface.
3. Do you provide consultation services?
Absolutely! Our team is available to help you choose the right materials for your specific project needs.
4. Can I pick up materials directly from the quarry?
Yes, customers can pick up materials directly from our quarry during operating hours. For local pickup, you’ll need at least a dump trailer because our loaders are too large for truck beds.
5. What is Rip Rap used for?
Rip Rap is ideal for shoreline protection, slope stabilization, and erosion control.
Contact Delphi Quarry Today
Ready to get started? Contact us today for more information or to place your order.
Location: Delphi Rd SW, Olympia, WA 98510
Phone: 360-268-9231
Hours: Mon-Fri, 7:00 am – 3:00 pm