Buy 5/8 Minus in Tonasket, WA

If you are building a driveway, a parking pad or a shed slab on the Okanogan Highlands, the surface course you want is 5/8 minus.

Washington Rock Supply sells gravel and aggregate delivery in Tonasket, WA, and 5/8 minus is the crushed rock with the fines left in, so it packs hard and sheds water instead of soaking it up.

Thin stony soil over bedrock on the ridges and till in the valleys means the ground under your project needs a surface that will hold together.

Materials for Tonasket Projects

Base and driveway surfacing is where most ground work here starts, and the two minus courses do that job. Both keep their crusher fines, so they compact into a firm, load-bearing layer rather than staying loose.

5/8 Minus, also called crushed surfacing top course or CSTC, is the Washington default surfacing course. Use it for driveways, parking pads and shed or shop slabs.

1 1/4 Minus, also called crushed surfacing base course or CSBC, is the structural course that goes below a 5/8 minus top. Its larger top size and fewer fines carry load and stay workable on soft, wet ground.

For a long rural drive, farm approach or equipment parking, Driveway Gravel is sold as a blend alongside the graded surfacing courses. It surfaces the same kind of ground the minus courses build up.

Where water has to move instead of being held, the washed products take over. Drain Rock, also called 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, also called 3/4 clean, is the washed counterpart to a minus product. It drains instead of compacting, which suits trench backfill, pipe surround and under-slab drainage.

Sand and soil round out a site. Washed Sand goes into concrete mixes, paver setting beds and pipe bedding, washed so silt is out.

Top Soil is screened and blended for lawn repair, new turf and grading out settlement.

Ground and Conditions in Tonasket

Across the Okanogan Highlands and the northeast corner, most of the year's water arrives as snow and leaves over a few weeks in spring. That runoff saturates valley soils while the ground below them is still frozen.

Gravel valley floors drain quickly. Till and lake silt do not, so water sits in them long after the snow is gone.

A base course over that ground has to be built to shed water, not trap it.

Spring breakup also scours ditches, culverts and gravel roads, and cuts streambanks in the valley rivers. Bare burned slopes shed soil and rock after the region's wildfire seasons, which is where riprap and large round rock come in.

The working season is short. Base, drive and paver work fits between spring breakup and the autumn freeze, and the window narrows the higher and further north the site sits.

This is the coldest corner of the state, with long winters and a slow breakup. Frost depth in Okanogan County is 24 inches, and the county or city building department sets that figure.

It can be deeper at elevation, so treat it as a footing depth rather than a target for your gravel.

Delivery to Tonasket and the Surrounding Area

Order online and a dump truck tips your load on site. Choose your quantity by the ton or by the yard, and use the calculator on each product page to size the load before you check out.

Have the drop area clear and reachable before the truck arrives. A bulk load lands in one pile where the truck can safely tip it, so pick a spot that keeps the material out of the way of your work.

Washington Rock Supply delivers across Tonasket and Okanogan County, including Omak, Okanogan, Brewster, Oroville and Twisp.

Questions About Ordering in Tonasket

Do you supply contractors working in Tonasket?

Yes. Washington Rock Supply serves contractors and homeowners in Tonasket and across Okanogan County.

You order online, choose a quantity by the ton or by the yard, and a dump truck delivers to your site. The same materials are available whether you are building a driveway, setting a slab or running drainage.

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

Yes. 5/8 minus, also called crushed surfacing top course or CSTC, is delivered to Tonasket and the surrounding area.

It is the crushed rock with the fines left in, so it packs hard and sheds water. Order it online by the ton or yard, and size your load with the calculator on the product page.

Order Base and Driveway Material for Your Tonasket Project

Washington Rock Supply supplies 5/8 minus, 1 1/4 minus, drain rock, sand, topsoil and more for driveways, parking pads, slabs and drainage work in Tonasket. Order online, size your load, and a truck will tip it on site.