1 1/4 Minus and Bulk Aggregates for Sumner, WA

Washington Rock Supply handles gravel and aggregate delivery in Sumner, WA. Winter rain soaks the loose upper soil, hits the dense till and stops, so water sits close to the surface instead of draining away.

That perched water is why washed stone does so much work here. Start with 5/8 minus for a compacted surface, then give the water somewhere to go.

Materials for Sumner Projects

Water that cannot drain sideways finds the weakest point in a drive, a slab or a cut slope. Washed stone takes it away.

These sizes carry the drainage work on Sumner sites.

Drain Rock

Drain rock, also called 7/8 clean or washed rock, has no fines left in it, so it keeps its voids open. Use it in footing drains, French drains, curtain drains and infiltration trenches.

Drain Rock is the stone that takes perched water sideways to daylight.

3/4" Crushed Stone and #57 Stone

3/4" Crushed Stone is the washed counterpart to a minus product, so it drains instead of compacting. Trench backfill, pipe surround, drain fields and under-slab drainage all take it.

#57 Stone is the same idea at a graded size.

Washington yards sell it by inch size, so ask for 3/4 inch clean.

#4 Crushed Stone for Drywells

Drywells and heavy drainage take #4 Crushed Stone.

4 as the alternative for gravel backfill for drywells.

Downspout Runs and Splash Pads

Downspout runs and splash pads take round rock. Washington River Rock is rounded rather than crushed, so it will not lock together and should be edged where it can wander.

For a swale, ditch or culvert outfall, step up to Large River Rock. Larger round stone stays put where a smaller one would be carried off in a winter storm.

Surfacing and Base Courses

Above the drainage layer, 5/8 minus (crushed surfacing top course, or CSTC) packs hard because the crusher fines stay in. It sheds water instead of soaking it up, and it finishes driveways, parking pads and shed slabs.

Under it goes 1 1/4 minus, the crushed surfacing base course, or CSBC. It has a larger top size and fewer fines, so it carries load and stays workable on soft wet ground.

1 1/4 Minus sits below a 5/8 minus top course.

Delivery to Sumner and the Surrounding Area

Washington Rock Supply delivers bulk aggregate across Sumner and the rest of Pierce County. Coverage runs to Tacoma, Lakewood, Puyallup, Graham and University Place.

Order online. Choose a quantity by the ton or by the yard, and each product page has a calculator to help size the load.

Pick your delivery date at checkout, and a dump truck tips the material in one pile on site.

Have the drop spot clear and reachable before the truck arrives. Bulk loads are heavy and the pile stays where it lands.

Ground and Conditions in Sumner

The wet season runs October through April across the Puget Sound lowland. In that window, exposed soil under the state stormwater manual for western Washington must be stabilized within two days, against seven days in summer.

That timing shapes when you schedule a delivery.

Sumner sits on Puget Sound lowland ground: a dense till cap over advance outwash sand, with silt and clay below. Rain perches on the till and sits there all winter.

Mild, wet winters mean the ground seldom freezes deep. Saturation, not frost, is what softens a base, so a drive that was firm in August can rut in February.

Pierce County publishes a 12 inch frost depth in its lowlands, and that figure is a footing depth set by the building official.

Build for drainage first. Washed stone below and a compacted minus course above keep a Sumner drive working through the wet months.

Schedule base, paving and paver work for the dry months, and keep the grade covered in winter.

Order Bulk Aggregate for Sumner

Washington Rock Supply delivers 5/8 minus, washed stone, sand and soil to Sumner and across Pierce County. Order online by the ton or the yard, choose your delivery date at checkout, and the truck tips it on site.

Place your Sumner order when you are ready.