1/4 Minus Delivery for Mineral, WA

Washington Rock Supply handles gravel and aggregate delivery in Mineral, WA. Order 5/8 minus and it packs hard under a drive, because the crusher fines stay in the mix.

On thin, stony ground like this, a surfacing course that sheds water beats one that soaks it up.

Mineral sits in Lewis County, on the wet side of the Cascade Range and the east-slope valleys.

Delivery to Mineral and the Surrounding Area

Order online, pick a quantity by the ton or by the yard, and set a delivery date at checkout. A dump truck tips the load on your site in one pile.

Each product page has a calculator if you want to size the load before you commit. Bulk delivery reaches Mineral and the rest of Lewis County, including Centralia, Chehalis, Winlock, Morton and Mossyrock.

Materials for Mineral Projects

Raising grade and building pads drive the material list here. Get the fill and sub-base right and everything above it holds.

Building up a low pad or over-excavated spot

Start with Fill Dirt to raise grade and backfill over-dig. It is common borrow, the unscreened material that brings a site up to level before a granular course goes down.

Set the structural layer with 1 1/4 Minus, the crushed surfacing base course, or CSBC. Its larger top size carries load and stays workable on soft, wet ground.

Finishing a drive or pad

Top the base with 5/8 Minus, also called crushed surfacing top course or CSTC. The fines are left in, so it compacts into a hard surface.

For long rural approaches and equipment parking, Driveway Gravel is sold as a blend alongside the graded surfacing courses.

Drainage and bedding

Where water sits, use Drain Rock, or 7/8 clean. It is washed with no fines, so it keeps its voids in a footing drain or French drain.

Bed pavers and flagstone on Stone Screenings, also called crusher dust or 3/8 minus. It is a minus product, so it compacts rather than drains.

Ground and Conditions in Mineral

Soil across the Cascade Range and the east-slope valleys is thin and stony over volcanic and granitic rock, with glacial and river gravel down on the valley floors.

That shallow profile matters. An under-built base on thin ground moves, and the surface above it follows within a season.

Water arrives two different ways on the two slopes. The west slope takes heavy annual rainfall and sheds it fast off steep ground.

East-slope valleys are dry, some under 10 inches a year, and their trouble is snowmelt and cloudburst runoff landing all at once on bare ground.

Both patterns scour road shoulders, ditches and culvert outfalls. Arm those with washed stone that drains, not a minus product that traps water.

The working window in the mountain valleys runs roughly late spring to early autumn, later at elevation, because snow closes the high ground.

Winters get longer with elevation, and cold clear nights after sunny days drive a real freeze-thaw cycle on the east slope. Frost depth is set by the local building department, so confirm the number for your site.

Questions About Ordering in Mineral

What is the best base under pavers in Mineral?

Set pavers on Stone Screenings, also called crusher dust or 3/8 minus. It is a minus product, so the fines are left in and it compacts into a firm setting bed instead of draining.

Under that, build the structural layer with 1 1/4 Minus, the crushed surfacing base course, so the bedding has something solid to sit on.

Do you supply contractors working in Mineral?

Yes. Washington Rock Supply delivers bulk gravel, crushed stone, sand, topsoil and aggregates to job sites in Mineral and across Lewis County, including Centralia, Chehalis, Winlock, Morton and Mossyrock.

Contractors order online, choose a quantity by the ton or by the yard, and pick a delivery date at checkout.

Order 5/8 Minus for Your Mineral Site

5/8 minus is the surfacing course that answers wet ground in this part of Washington, because the fines stay in and it packs hard. Pair it with 1 1/4 Minus underneath for a drive that carries load.

Order online by the ton or yard and set your delivery date at checkout.