Buy 1 1/4 Minus in Medical Lake, WA

Washington Rock Supply handles gravel and aggregate delivery in Medical Lake, WA. If you are building a driveway or a parking pad, the pair that does the work is 1 1/4 minus under 5/8 minus.

The base carries the load, and the surfacing course on top packs hard and sheds water.

Ground across the Spokane and the Selkirk foothills runs to open gravel and cobbles left by the Ice Age floods. That is friendly ground for a drive, as long as you size the base right.

Materials for Medical Lake Projects

Start with the base. 1 1/4 Minus, sold elsewhere as CSBC, is the structural course that goes down first under a drive, a parking area or a slab.

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

Over that goes 5/8 Minus, the Washington default surfacing course, also called CSTC. The crusher fines stay in this one, so it compacts tight and sheds water instead of soaking it up.

It is the right top course for driveways, parking pads and shed slabs.

For long rural approaches and equipment parking, Driveway Gravel is a blended driveway rock. Quarries here sell it beside the graded surfacing courses.

Then the washed side of the yard, where fines have been taken out so water moves instead of stacking up.

Drain Rock, or 7/8 clean, is washed with no fines, so it keeps its voids in a footing drain or a French drain. Walkway Gravel, also called 1/4 minus, packs down tight underfoot on garden paths and side yards.

Sand, soil and decorative stone fill out an order. Washed Sand mixes concrete and beds pipe, Top Soil repairs lawn, and Washington River Rock handles dry creek beds and splash pads.

Ground and Conditions in Medical Lake

Water is the thing to think about first. Ground across the Spokane and the Selkirk foothills drains almost too well, and the valley gravel is open enough that water moves through the aquifer below at up to 60 feet a day.

That cuts both ways. Infiltration is easy, and whatever sits on the surface goes down with it.

The aquifer has carried a federal sole source designation since 1978, so a clean, well-drained site matters.

Compacted fill and shallow basalt shelves are where the wet spots show up. That is the argument for a real base course under a surfacing course rather than one layer of rock on bare ground.

Runoff cuts the loess on the hills south of the city, and spring thaw gullies draws and road ditches. Eastern Washington's wet weather season for erosion control runs October 1 through June 30, so cover open ground before then.

Winters here are cold and the ground freezes to depth. Spokane sets footing depth well below the western Washington figure for that reason, at a 24 inch frost line.

Base and paving work runs through a long dry summer, then stops once the ground freezes.

Delivery to Medical Lake and the Surrounding Area

Bulk material arrives by dump truck, and the driver tips the load in one pile on your site. Have the drop spot clear and reachable before the truck shows up, with nothing overhead and a firm surface under the wheels.

Order online in Washington Rock Supply. You choose a quantity by the ton or by the yard, and each product page has a calculator if you want to size the load.

Pick a delivery date at checkout.

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

Order Base and Surfacing for Medical Lake

Washington Rock Supply delivers 1 1/4 minus, 5/8 minus, washed stone, sand and soil across Medical Lake. For rebuilding a driveway, bedding a patio or running a drain, order online and size the load by the ton or the yard.