Crushed Stone, Sand and Gravel in Clarkston, WA

Washington Rock Supply sells gravel and aggregate delivery in Clarkston, WA. Order online by the ton or the yard and a dump truck tips the load on your site.

Start with 5/8 minus, the crushed surfacing top course this market calls by its inch size. It packs hard and sheds water instead of soaking it up, which matters on the deep windblown silt that covers the Palouse hills.

Materials for Clarkston Projects

A drive or parking pad here is built from the ground up. The base course carries the load, and the surfacing course on top takes the traffic.

Base and Driveway Surfacing

1 1/4 Minus, also called crushed surfacing base course or CSBC, is the structural course under a drive, parking area or slab. Its larger top size and fewer fines carry load and stay workable on soft wet ground.

5/8 Minus is the Washington default surfacing course. Crushed rock with the fines left in, it packs hard and sheds water, which suits driveways, parking pads and shed or shop slabs.

Driveway Gravel is a blend for long rural drives, farm and forest approaches, and equipment parking.

Washed Stone and Drainage

Drain Rock, sold as 7/8 clean or washed rock, has no fines, so it keeps its voids in footing drains, French drains and infiltration trenches.

3/4" Crushed Stone is the washed counterpart to a minus product. It drains instead of compacting, so it works for trench backfill, pipe surround and drain fields.

Sand, Soil and Decorative Stone

Washed Sand goes into concrete mixes, paver setting beds and pipe bedding. Washing takes the silt out, which matters on a site working through the wet season.

Top Soil is screened and blended for lawn repair, new turf and grading out settlement. Washington River Rock is rounded stone for dry creek beds, downspout splash pads and planting beds.

Ground and Conditions in Clarkston

Water that cannot get in is the driver here. When the top inch of loess thaws over frozen soil below, rain and snowmelt run across the surface instead of soaking in.

Across the Palouse and the Blue Mountain foothills, that makes every slope a drainage path. Anything built on a slope needs runoff routed before it starts cutting.

The silt itself is fine, deep and easily worked, and it moves easily too. Sheet and rill erosion on long cultivated slopes is the pattern in this part of the state.

Eastern Washington's wet weather season runs October 1 through June 30. The working season is long and dry through the summer and closes when the ground freezes.

Frost depth is set by the county or city building department. Confirm the local number before you plan footings.

Delivery to Clarkston and the Surrounding Area

Bulk material arrives by dump truck. The truck tips the load in one pile, so have the drop area clear and reachable before it backs in.

Order online, choose your quantity by the ton or the yard, and pick a delivery date at checkout. Each product page has a calculator if you want to size the load first.

Washington Rock Supply delivers across Clarkston and Asotin County, including Asotin and Anatone.

Order Base, Surfacing and Drainage Material in Clarkston

Washington Rock Supply covers driveways, parking pads, shop slabs, footing drains and planting beds in Clarkston and Asotin County. Order 5/8 minus, 1 1/4 minus, drain rock, sand or topsoil online and have it tipped on your site.