Graniterock provides a full range of construction coarse and fine aggregates from five mining operations.

GraniteXpress, the automatic loadout system at the A.R. Wilson Quarry, is similar to a bank’s ATM system — simply insert your card and request the material desired. The truck is rapidly, accurately, and automatically loaded over a scale, and automatically billed - open 24 hours a day, 7 days per week. There is nothing else like it in the world. Reductions in trucking time can result in customer savings of thousands of dollars on a single project. (requires Adobe Reader)

• Wilson ¼" × #10 Premium Screenings
• Wilson ⁵⁄₁₆" × #8 Screenings
• Wilson ³⁄₈" × #6 Screenings
• Wilson ½" × #4 Screenings
• Wilson ½" × #4 Roofing Aggregate
• Wilson ½" × #4 Concrete Rock
• Wilson ¾" × ½" Concrete Rock
• Wilson 1" × #4 Concrete Rock
• Wilson 1 ½" × ¾" Concrete Rock
• Wilson 1 ½" × ¾ Rail Ballast
• Wilson ¼" × #10 Rock
• Wilson Class I Type A Permeable
• Wilson Class I Type B Permeable
• Wilson ¼" Drain Rock
• Wilson ½" Drain Rock
• Wilson ¾" Drain Rock
• Wilson 1 ½" Drain Rock
• Wilson Rip Rap/Coarse Rubble/Gabion
• Wilson ¾" Class II Baserock
• Wilson ¾" Class IV Baserock
• Wilson 1 ½" Class II Baserock
• Wilson 1 ½" Class IV Baserock
• Wilson Type I Slurry Seal Aggregate
• Wilson Type II Slurry Seal Aggregate
• Wilson Type III Slurry Seal Aggregate

Graniterock Aggregate products are available from the quarries listed in the above product descriptions, and are also available from Building Materials Branches and many Road Materials Branches, including our locations in:

• Aromas
• Felton
• Hollister
• Redwood City
• Salinas
• Capitol
• San Jose
• Santa Cruz
• South San Francisco