Wash Baserock
Best for: A cleaner, lower-dust base where washed, free-draining material is preferred.
Type
Washed aggregate base
Specification
Class 2 base, washed
Fines
Reduced — silt/clay rinsed out
Drainage
Good — freer than dense base
Overview
About Wash Baserock
Wash baserock delivers the structural performance of Class 2 aggregate base with a cleaner, free-draining character. It is the same crushed base material run through a wash plant to flush out excess silt and clay fines — the result is a low-dust product on the jobsite and a more permeable platform that lets water move through rather than perch on top. It still keys together and compacts under pavement and pads, but it is the smarter specification wherever drainage, cleanliness and a tidy backfill matter as much as raw stiffness. Crews choose it under permeable pavers, behind retaining walls and as pipe and utility base where washed material is preferred or required.
- ✓Washed Class 2 aggregate base.
- ✓Rinsed to cut dust, silt and clay fines.
- ✓Cleaner handling and freer drainage.
- ✓Still keys together and compacts under load.
Wash baserock starts as the same crushed Class 2 aggregate, then runs through a wash plant that flushes away the finest silt and clay particles. Removing those "dirty" fines does two things: it cuts the dust you fight on a dry jobsite, and it leaves the material more permeable, so water moves through rather than perching on top. The trade-off is a slightly less rigid lock-up than full dense-grade base, which is exactly what you want where drainage matters more than maximum stiffness.
Crews reach for washed base when the spec calls for a low-fines, free-draining platform — under permeable pavers, behind walls, as pipe and utility base, or anywhere a cleaner backfill keeps the work tidy. It still compacts well and carries load; it simply sheds water faster. Plan on roughly 1.4 tons per cubic yard and about 100 sq ft of coverage per ton at 2".
Specifications
The details
- Type
- Washed aggregate base
- Specification
- Class 2 base, washed
- Fines
- Reduced — silt/clay rinsed out
- Drainage
- Good — freer than dense base
- Unit weight
- ≈ 1.4 tons / cu yd
- Sold by
- Ton
Applications
Common uses
- ✓ Cleaner base under pavement & pads
- ✓ Free-draining structural base
- ✓ Pipe & utility trench base
- ✓ Permeable paver setting base
- ✓ Low-dust backfill
- ✓ Behind retaining walls
Need Wash Baserock on site?
Priority delivery across French Camp & San Joaquin County.
Questions
Wash Baserock — FAQ
- How is wash baserock different from regular base?
- It is the same Class 2 aggregate with the fine silt and clay washed out — less dust, better drainage, slightly less rigid lock-up than standard dense-graded base.
- Will washed base still compact?
- Yes. It keys and compacts under load; it just drains faster because the dirty fines are gone. Wet and roll it like any base.
- When should I choose washed over standard base?
- Pick washed where drainage and cleanliness matter — permeable pavers, wall backfill, utility base — and standard dense base where maximum structural stiffness is the priority.
More materials
Explore the rest of the yard
QuarryVirgin Baserock (AB Class 2)
Virgin baserock is the structural backbone of paved construction — a quarry-fresh Class 2 aggregate base crushed from solid stone and graded continuously from three-quarter inch down to fines. Because every particle is freshly fractured and angular, the blend keys together and compacts into a dense, rigid platform that distributes traffic loads down to the subgrade without rutting, pumping or settling. It is the same material specified beneath California highways, parking structures and building pads — certified to a minimum R-value of 78 and a sand equivalent of 22 under Caltrans Standard Specifications Section 26. When your project demands a clean, certified, load-bearing foundation engineered to perform for decades, this is the base to build on.
RecycledRecycled Base (Class II)
Recycled base is reclaimed concrete and asphalt, crushed and screened back into a graded three-quarter-inch aggregate that meets Caltrans Class II strength — engineered performance at a materially lower cost. The crushing process leaves the same angular, interlocking particle shape as virgin rock, so it compacts into a hard, stable platform that carries load just like quarried base, with a mild self-cementing tendency that can stiffen it further over time. For the vast majority of driveway, lot and pad work it performs on par with new base while diverting demolition debris from the landfill — a genuine sustainability advantage that can also support green-building credits. Produced on site at our French Camp yard, supply stays steady, local and competitively priced.
RecycledGrinding Asphalt (RAP Millings)
Grinding asphalt — reclaimed asphalt pavement, or RAP — is existing roadway milled off and crushed back into a workable, one-hundred-percent recycled aggregate. What sets it apart is the residual asphalt cement still coating every particle: under summer heat and traffic those oils reactivate and the material knits back together, a solar self-healing effect that firms a loose spread into a hard, blacktop-like surface with no new binder and no paving crew. Laid in three-to-six-inch lifts and compacted, it forms a durable, low-maintenance, weed-resistant surface that sheds water and improves with use. It is the budget-smart choice for driveways, ranch and rural roads, parking areas and shoulders — the greenest and most economical hard surface in the yard.