Buy Large Round Rock in Spokane, WA

Order gravel and aggregate delivery in Spokane, WA by the ton or the yard. Washington Rock Supply sells 5/8 minus, washed stone, sand and soil in bulk, and a dump truck tips the load on your site.

This part of the state sits on Ice Age flood gravel, so the ground under your project is usually open and workable.

Materials for Spokane Projects

Start with the surfacing course. 5/8 minus, also called crushed surfacing top course, is crushed rock with the fines left in, so it packs hard and sheds water instead of soaking it up.

Use it for driveways, parking pads, and shed or shop slabs. Order 5/8 Minus for the top course, and 1 1/4 Minus as the structural course below it.

Then pick the washed stone. Washed means the fines are gone, so the stone drains instead of compacting.

Drain Rock, sold as 7/8 clean, keeps its voids in footing drains, French drains and infiltration trenches. 3/4" Crushed Stone backfills trenches and surrounds pipe.

For walks and bedding, 1/4 minus, also called quarter minus or pathway gravel, packs down tight underfoot on garden paths and side yards. Link it as Walkway Gravel.

Crusher dust, sold as 3/8 minus or screenings, beds pavers and flagstone and fills joints. It compacts rather than drains.

Stone Screenings covers that work.

Round out the order with sand and soil. Mason Sand goes into mortar, stucco and paver joint sweeping.

Washed Sand mixes concrete and beds pipe. Top Soil repairs lawns, and Fill Dirt raises grade before a granular course goes down.

Ground and Conditions in Spokane

Water moves through the valley gravel fast, up to 60 feet a day in the aquifer below it. That makes infiltration easy and means whatever sits on the surface goes down with it.

The aquifer has carried a federal sole source designation since 1978. Plan drainage so silt and runoff stay on site.

Across the Spokane and the Selkirk foothills, the ground is cobbles, gravel and sand from the Missoula floods, with granite and basalt outcrops on the hills and a thin loess cap south and west of the city.

Runoff cuts that loess on the hills, and draws and road ditches gully during the spring thaw. The wet weather season for erosion control runs October 1 through June 30.

Winters are cold, the ground freezes to depth and thaws hard in spring. Spokane sets its footing depth well below the western Washington figure for that reason, at 24 inches in the Spokane Municipal Code design criteria.

Summers stay dry and long, which suits base and paving work, and the ground freezes solid in winter. Build your schedule around that.

Compacted fill and shallow basalt shelves are where the wet spots show up. A washed stone layer under a minus course handles that.

Delivery to Spokane and the Surrounding Area

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

A dump truck arrives and tips the load in one pile. Have the drop spot clear and reachable, with room for the truck to enter and leave.

Delivery covers Spokane and the rest of Spokane County, including Cheney, Liberty Lake, Airway Heights, Mead and Medical Lake.

Questions About Ordering in Spokane

Do you supply contractors working in Spokane?

Yes. Washington Rock Supply sells bulk gravel, crushed stone, sand, topsoil and mulch to contractors and homeowners working in Spokane and across Spokane County.

Order online with the specifications your job calls for, 5/8 minus, 1 1/4 minus, drain rock and the rest, and a truck delivers to the site.

Do you deliver 5/8 minus to Spokane, WA?

Yes. 5/8 minus, the crushed surfacing top course, delivers to Spokane and the surrounding area.

Choose your quantity by the ton or the yard on the product page, then pick a delivery date at checkout. The truck tips the load on site, so have the drop area clear before it arrives.

Order Base and Surfacing Material for Your Spokane Job

Washington Rock Supply delivers 5/8 minus, washed stone, sand and soil across Spokane and Spokane County for driveways, parking pads, drainage and slabs. Order online by the ton or the yard and pick your delivery date at checkout.