Bulk Aggregates for Patios in Carlton, WA

Washington Rock Supply handles gravel and aggregate delivery in Carlton, WA for two kinds of buyers: contractors setting flatwork and homeowners building a patio or path. Both usually need the same starting point, 5/8 minus, the crushed surfacing top course that packs hard under a paver or slab.

Carlton sits in Okanogan County, where the ground runs thin and stony over rock on the slopes and holds glacial and river gravel down in the valley floors.

Ground and Conditions in Carlton

Across the Cascade Range and the east-slope valleys, soil is thin and stony over volcanic and granitic rock on the slopes. Valley floors carry glacial and river gravel instead.

That mix matters most under flatwork. A paver or flagstone bed laid over a soft or uneven subgrade shifts, and the joints open as the surface moves.

The east-slope valleys are dry, some under 10 inches a year, and their trouble is snowmelt and cloudburst runoff arriving all at once on ground with little cover. Water that reaches a bedding course from below or the side can move it.

Erosion follows the same pattern. Steep-slope runoff scours shoulders, ditches and culvert outfalls, and bare burned ground sheds sediment for years after a fire.

Winters here are real, and the east slope gets a genuine freeze-thaw cycle, with cold clear nights following sunny days. Frost heave in a gravel drive is an east-slope and high-country problem in a way it is not down in the Puget lowland.

Frost depth is set by the local building department and runs deeper than the lowland figure. Published Washington figures run from 12 inches on the west side to 24 inches at Spokane and in Okanogan County, so confirm the local number.

The working window is short. Snow closes the high ground, and the mountain valleys run roughly from late spring to early autumn, later at elevation.

Eastern Washington treats October 1 through June 30 as its wet weather season for erosion control.

Materials for Carlton Projects

Under pavers and flatwork, the bedding course does the leveling. It has to compact tight and stay put, because a bed that stays loose lets the surface rock and the joints open.

Stone Screenings, also called crusher dust or 3/8 minus, is the fine end of the minus range and the usual choice for paver and flagstone bedding, joint filling and setting beds. It is a minus product, so it compacts rather than drains.

3/8" Crushed Stone is the washed counterpart. With the fines taken out, it drains instead of packing, which suits permeable paver joints and setting beds and small drain runs.

Below the bed, the structural course carries the load. 1 1/4 Minus, or crushed surfacing base course, goes under a 5/8 minus top course.

Its larger top size and fewer fines let it carry load and stay workable on soft wet ground.

5/8 Minus, the crushed surfacing top course, is the Washington default surfacing layer. The fines stay in, so it packs hard and sheds water instead of soaking it up.

It suits driveways, parking pads and shed and shop slabs.

Where water needs to move rather than sit, Drain Rock, also called 7/8 clean or washed rock, keeps its voids. It goes in footing drains, French drains and infiltration trenches where a perched water table sits on till.

For garden paths and side yards, Walkway Gravel, or 1/4 minus, packs down tight underfoot. For long rural drives and equipment parking, Driveway Gravel is sold as a blend.

Delivery to Carlton and the Surrounding Area

You order online and choose a quantity by the ton or by the yard. Each product page has a calculator if you want to size the load before you check out.

Pick a delivery date at checkout, and a dump truck tips the load on site in one pile. The driver does not spread or place it.

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

Order Your Carlton Aggregate Delivery

Start with the calculator on the product page to size your load, then order the material your project needs by the ton or the yard. Washington Rock Supply delivers bulk gravel, stone, sand and topsoil across Carlton and Okanogan County.

Place your order online and pick a delivery date at checkout.