Gravel and Aggregate Delivery in Maple Valley, WA

Washington Rock Supply handles gravel and aggregate delivery in Maple Valley, WA. Order online by the ton or the yard and a dump truck brings it to your site.

Start with 5/8 minus, the crushed surfacing top course that packs hard on a Maple Valley drive. It is the base this ground asks for.

Materials for Maple Valley Projects

Base and driveway surfacing carry the work here. Two sizes do that job, and they stack.

5/8 Minus is crushed rock with the fines left in. Those fines bind the stone so it compacts and holds under tires.

It surfaces drives, parking pads, and shed or shop slabs.

1 1/4 Minus is the structural course below it. The larger top size and fewer fines carry load and stay workable on soft, wet ground.

Local spec sheets call it crushed surfacing base course, or CSBC.

Driveway Gravel suits long rural approaches and equipment parking. Walkway Gravel, or 1/4 minus, packs tight underfoot for garden paths and side yards.

Washed stone drains instead of compacting. Drain Rock, also called 7/8 clean, has no fines and keeps its voids in a footing drain or French drain.

3/4" Crushed Stone backfills trenches and surrounds pipe.

Sand and soil round out a site. Washed Sand goes into concrete mixes and paver setting beds.

Top Soil is screened and blended for lawns and grading.

Ground and Conditions in Maple Valley

Rain drives everything here. Across the Puget Sound lowland, winter rain soaks the loose upper soil until it hits the dense glacial till below.

That till stops the water, so it sits close to the surface from fall through spring. Crews call the hardest part of it hardpan.

Perched water is why drainage does so much work on a Maple Valley site. A footing drain or French drain lined with washed drain rock takes that water sideways to daylight.

Minus products behave the opposite way. 5/8 minus and 1 1/4 minus hold fines that lock together and shed water off the surface.

That is the difference between a drive that stays firm and one that ruts in February.

The wet season runs October through April. Under the state stormwater manual for western Washington, exposed soil must be stabilized within two days in that window.

Base work and paving fit the dry months.

Winters here are mild and wet. The ground seldom freezes deep, so saturation softens a base more than frost does.

King County publishes a frost depth of 18 inches, a footing figure the building official sets.

Delivery to Maple Valley and the Surrounding Area

Order online and pick your quantity by the ton or by the yard. Each product page has a calculator if you want to size the load before checkout.

Choose a delivery date at checkout. A dump truck arrives and tips your material in one pile on the site.

Have the drop spot ready before the truck reaches you. Bulk material needs firm ground, room for the truck to reach the pile location, and no overhead wires in the way.

Washington Rock Supply delivers across Maple Valley and King County, including Seattle, Bellevue, Kent, Renton and Federal Way.

Questions About Ordering in Maple Valley

Do you supply contractors working in Maple Valley?

Yes. Washington Rock Supply sells bulk gravel, crushed stone, sand, topsoil and aggregates to contractors and homeowners alike.

Order online by the ton or the yard, choose a delivery date at checkout, and a dump truck tips the load on your Maple Valley site. The same catalog and the same delivery process apply whether you are building one driveway or grading a larger job.

Do you deliver 5/8 minus to Maple Valley, WA?

Yes. 5/8 minus, the crushed surfacing top course, is available for delivery across Maple Valley and King County.

Order it online by the ton or the yard and pick a delivery date at checkout. It surfaces drives, parking pads and shed or shop slabs, and it packs hard because the crusher fines stay in the mix.

Order Base and Driveway Material for Your Maple Valley Site

Washington Rock Supply delivers 5/8 minus, 1 1/4 minus, drain rock, sand and topsoil for drives, parking pads, drainage and lawns across Maple Valley. Order online by the ton or the yard, size the load on the product page, and pick your delivery date at checkout.