Our Concrete or Mason Sand, also commonly referred to as Mortar Sand, is a fine to medium-textured washed sand ideal for cement mixing, masonry work, and precise leveling applications. With excellent workability and clean composition, this sand is frequently used in professional-grade bricklaying projects in Mill Valley, block wall mortar jobs in San Rafael, and concrete overlays installs in Vallejo. It can also serve as a fill, trench and electrical sand projects in the north bay cities.
 
Common Applications
Mortar Mixing – Creates strong, smooth mortar for brick, block, and stone work in Mill Valley, San Rafael, and Napa Valley.
Concrete Overlays & Patchwork – Provides reliable bonding for overlays, stucco, and repair work in Vallejo, Sonoma, and Petaluma.
Paver & Flagstone Bedding – Used as a leveling base under pavers, flagstone patios, and walkways in Novato, Santa Rosa, and surrounding North Bay cities.
Pool Base Preparation – Popular for pool liner installation and leveling in San Rafael, American Canyon, and other residential projects.
General Utility Sand – Excellent choice for trench backfill, electrical conduit bedding, and playground bases throughout Napa, Marin, Sonoma, and Solano counties.
 
Material Specs & Technical Notes
Type: Medium to coarse-textured, washed construction-grade sand.
Composition: Clean, natural silica-based sand, screened for consistency and uniform particle size.
Texture: medium to coarse grains for excellent workability in masonry and concrete applications.
Color: dark gray to brown (vary by quarry source).
Moisture Content: Low; washed and drained for uniform application.
Compaction: Moderate — compacts well for leveling and bedding layers.
Weight Per Cubic Yard: ~1.3 – 1.5 tons
Standards: Meets ASTM C144 for masonry mortar sand and ASTM C33 for concrete fine aggregate (commonly supplied).
Packaging: Bulk truckload delivery
Coverage Per Cubic Yard
~ 300 sq ft 1" depth
~ 150 sq ft 2" depth
~ 100 sq ft 3" depth
 
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Delivery Notes
Service Area: We deliver bulk Mason/Concrete Sand across Marin, Sonoma, Napa, and Solano counties.
Delivery Method: Loose bulk material delivered by dump truck.
Order Minimums:
• Minimum: 3 cubic yard
• Maximum: Up to 17 cubic yards per truckload (depending on truck type and site access).
Truck Access Requirements:
• Minimum 12 ft. wide entry clearance
• Firm, level ground required for safe unloading
• Dump truck must be able to raise its bed fully — avoid low-hanging wires, branches, or obstructions.
Lead Time: Most deliveries scheduled within 0–3 business days. Priority scheduling available for contractors and multi-yard orders.
Multi-Material Orders: Mason Sand can often be delivered with other sand or gravel products in the same load if sourced from the same quarry.
Special Notes: This product is sold by volume (cubic yard). Expect minor natural moisture variation that may affect weight.
 
 
Frequently Asked Questions
Q: What is Mason/Concrete Sand typically used for?
A: It’s commonly used for mixing mortar, brick and block work, laying pavers and flagstone, creating a smooth pool base, and general-purpose construction and leveling applications.
 
Q: Can this sand be used under pavers?
A: Yes, Mason Sand is an excellent bedding layer for pavers and flagstone because of its fine, uniform texture that allows for even compaction and stability.
 
Q: How much coverage do I get per cubic yard with Concrete Sand?
A: One cubic yard covers approximately 200 sq. ft. at 1" depth or 100 sq. ft. at 2" depth.
 
Q: Is Mason Sand the same as Play Sand?
A: No. While both are washed sands, Mason Sand is coarser and designed for construction, masonry, and concrete applications. Play Sand is finer and specifically graded for safe use in sandboxes and recreational areas.
 
Q: Do you deliver small quantities?
A: Yes, delivery is available starting at 1 cubic yard (certain areas only). For larger projects, we can deliver up to 17 cubic yards per truckload.