ASTM-Grade Washed Sand for Concrete, Pavers & Masonry — Delivered Across Marin, Sonoma, Alameda, Contra Costa, San Francisco & San Mateo
 
Washed Concrete Sand (often called ASTM Sand) is a clean, fine-to-medium sand with a gritty texture, designed for consistent performance in concrete and hardscape applications. Because it’s washed and screened, it contains fewer impurities and excess fines—helping mixes bond well, drain properly, and finish clean.
 
At North Bay Materials, our Concrete Sand is sold by the cubic yard and delivered in bulk using residential-friendly dump trucks, making it easy for homeowners, contractors, and landscapers to get the right sand delivered to projects across Marin County, Sonoma County, Alameda County, Contra Costa County, San Francisco, and San Mateo County.
 
Best Uses & Applications for Washed Concrete Sand
Washed Concrete Sand is valued for its balanced grain size, gritty texture, and low clay/fines content, making it ideal for applications where strength, bonding, and drainage all matter. It’s widely used on residential, commercial, and municipal projects throughout the North Bay and Bay Area.
 
Common applications include:
Concrete mixes & flatwork
A primary aggregate for mixing concrete used in slabs, sidewalks, curbs, pads, and footings. Its clean gradation helps produce strong, workable concrete with consistent finishing.
 
Paver bedding & leveling sand
Used beneath concrete and stone pavers to create a stable, well-draining bedding layer that allows precise leveling and long-term performance.
 
Masonry & mortar applications
Commonly blended with cement and lime for masonry mortar, block work, and stucco applications where clean, angular sand improves bond strength.
 
Post holes & fence footings
Ideal for setting fence posts, sign posts, and light structural elements when mixed with concrete or used as a base layer.
 
General construction & site prep
Used for filling small voids, fine grading, and creating a clean working surface before concrete pours or hardscape installation.
 
Because washed concrete sand contains minimal clay and organic material, it performs better than utility or native sands in structural mixes—especially important for projects in San Rafael, Novato, Petaluma, Walnut Creek, Concord, San Francisco, Santa Rosa and San Mateo.
 
Material Specs & Technical Notes
Type: Medium to coarse-textured, washed construction-grade sand.
Composition: Clean, natural quarried sand, screened, washed for consistency.
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 – 1.4 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
 
Coverage, Ordering & Bulk Delivery
Washed Concrete Sand Delivered by the Cubic Yard — Clean, Consistent & Job-Ready
 
North Bay Materials provides Washed Concrete Sand (ASTM Sand) delivered by the cubic yard, eliminating the need for yard pickups or handling dozens of bags. Our delivery-only model is designed for residential, urban, and light-commercial projects where clean, consistent sand is critical.
 
Delivery Areas We Serve
We deliver Concrete Sand throughout:
Marin County – San Rafael, Novato, Mill Valley, Tiburon, Larkspur, Corte Madera
Sonoma County – Petaluma, Santa Rosa, Rohnert Park, Sebastopol
Alameda County – Oakland, Berkeley, Piedmont, San Leandro
Contra Costa County – Walnut Creek, Concord, Orinda, Lafayette
San Francisco – All neighborhoods
San Mateo County – Daly City, San Mateo, Burlingame, Redwood City
If your location is nearby but not listed, request a quote—coverage is often available.
 
Available Quantities
Sold by the cubic yard
Washed & screened to reduce fines and impurities
Ideal for concrete mixing, paver bedding, masonry, and site prep
 
Typical load capacities:
5–7 cubic yards per load (varies by moisture content and access conditions)
Material is dumped in one accessible location such as a driveway, street frontage, or designated staging area. Please ensure:
Firm, level dumping surface
Clear access and overhead clearance
Adequate space for safe truck maneuvering
 
Ordering & Scheduling
Order online or request a quote for larger or multi-load projects
Pricing is distance- and time-based
Standard delivery within 1–3 business days
Same-day or next-day delivery may be available in select areas
 
From concrete pours in San Rafael to paver installations in Santa Rosa, masonry work in Walnut Creek, or site prep in San Mateo, North Bay Materials delivers clean, ASTM-grade Concrete Sand—fast, local, and ready to work.
 
Frequently Asked Questions
Q: What is ASTM 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 concrete 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: 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.