Crushed Stone, Sand and Gravel in Farmington, WA

Washington Rock Supply brings gravel and aggregate delivery in Farmington, WA to contractors and homeowners working on the same ground. For prepping a garden bed or rebuilding a drive, the material has to suit the fine, deep loess that covers this part of the Palouse.

5/8 minus is the local name for the crushed surfacing top course that packs hard and sheds water. It works as a top course over a larger base, and it is a sensible place to start when you are weighing options.

Materials for Farmington Projects

Grading and bed prep come first on most sites here, and that work starts with soil and fill. Screened Top Soil is screened and blended for lawn repair, new turf and leveling out settlement.

It gives seed and sod something to root into instead of the raw loess underneath.

Garden Soil is a blend of screened soil and compost, built for raised beds and vegetable plots. It holds moisture and structure better than plain topsoil in a bed you plant every year.

Fill Dirt is common borrow, unscreened and used to raise grade and backfill over-excavation. It brings a low spot up so a granular course has something to sit on.

Note that gravel borrow is the granular structural fill, a different material from common borrow.

Once grade is set, the base and surfacing courses take over. 1 1/4 Minus, also called crushed surfacing base course, is the structural layer under a drive or slab.

Larger top size and fewer fines let it carry load on soft ground.

5/8 Minus, or crushed surfacing top course, sits above it. The fines stay in, so it compacts and sheds water rather than soaking it up.

Washed stone handles water instead of holding it. Drain Rock, or 7/8 clean, keeps its voids because the fines are washed out.

That matters where a perched water table sits above the till.

For sand, Washed Sand goes into concrete mixes, paver setting beds and pipe bedding. Mason Sand is the finer grade for mortar, stucco and joint sweeping.

Decorative stone is the other side of the order. Washington River Rock is rounded, so it suits dry creek beds and downspout splash pads.

Natural Pea Gravel is washed and rounded for play areas, dog runs and planting beds.

Ground and Conditions in Farmington

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

Every slope turns into a drainage path.

Loess is windblown silt, fine, deep and easily worked, and it moves easily too. Sheet and rill erosion on long cultivated slopes has taken a large share of the original Palouse topsoil since farming began.

On a graded site, that means runoff needs somewhere to go before it starts cutting.

A minus product compacts and holds, while a clean or washed product drains. Choosing between them is the practical decision on most sites here.

Under a slab or drive, a compacting course carries load. Around a footing drain or infiltration trench, an open washed stone keeps the voids that let water through.

The working season is long and dry through summer and closes when the ground freezes. Eastern Washington's wet weather season runs October 1 through June 30, and the worst erosion risk is the thaw, not high summer.

That timing shapes when grading and surfacing work best.

Frost depth is set by the county or city building department. Published figures nearby include 24 inches at Spokane and 18 inches in Grant County, so confirm the local number before you plan footings.

Delivery to Farmington and the Surrounding Area

Bulk material arrives by dump truck and is tipped in one pile on site. Have the drop area clear and reachable, with room for the truck to approach and leave.

The load cannot be placed, spotted or spread, so pick the spot where the pile should sit.

Ordering happens online. You choose a quantity by the ton or by the yard, and each product page has a calculator to help you size the load.

Pick a delivery date at checkout and the truck arrives with your material.

Farmington sits in Whitman County, and delivery covers the surrounding area, including Pullman, Colfax, Palouse, Tekoa and St. John.

Rural approaches and farm sites are part of that coverage.

Order Gravel, Soil and Stone for Your Farmington Project

Washington Rock Supply delivers 5/8 minus, washed stone, sand, topsoil and fill to Farmington and the surrounding Whitman County area. For grading a pad, prepping beds or rebuilding a drive, size your load and place the order online.