Order Gravel, Stone and Soil in Bellevue, WA

Washington Rock Supply handles gravel and aggregate delivery in Bellevue, WA, and the rest of King County. Every product page carries a calculator, so you can size a load before you order.

5/8 minus is the local name for the crushed surfacing top course that packs hard and sheds water.

Bulk orders go by the ton or by the yard, and a dump truck tips the load on your site. This page covers what to order for beds, dry creek beds and driveways, and what the ground here does to a base.

Delivery to Bellevue and the Surrounding Area

You order online, pick a quantity by the ton or by the yard, and choose a delivery date at checkout. A dump truck then tips the material on site in one pile.

Bellevue sits in King County, and delivery covers the city along with Seattle, Kent, Renton, Federal Way and Kirkland. Quantities are ordered by the ton or by the yard, and the calculator on each product page helps you size the load before you check out.

Materials for Bellevue Projects

Decorative rock does a lot of the finish work on a Bellevue yard. Rounded stone is filed under round rock here rather than crushed, and it suits dry creek beds, downspout splash pads and planting beds.

Washington River Rock is the standard round stone for a dry creek bed or a bed edge. Large River Rock runs 2 to 8 inches and armours swales, ditch lines, bank toes and culvert outfalls where a smaller stone would move in a winter storm.

Natural Pea Gravel is washed and rounded, so it will not compact. It works for play areas, dog runs, planting beds and pipe bedding, and it should be edged where it can wander.

Shredded Mulch is sold here as beauty bark, the local trade name for landscape bark. It covers planting beds, tree rings and slopes.

For the structural side, 5/8 minus is the Washington default surfacing course, a minus product with the crusher fines left in. 5/8 Minus goes on driveways, parking pads and shed slabs.

Below it, 1 1/4 Minus is the crushed surfacing base course, a larger top size with fewer fines that carries load on soft wet ground.

Drainage is the other half of the work. Drain Rock, also called 7/8 clean, is washed with no fines, so it keeps its voids in footing drains, French drains and infiltration trenches.

Ground and Conditions in Bellevue

Across the Puget Sound lowland the ground is glacial, laid down by the Vashon ice sheet. A dense till cap sits over advance outwash sand, with silt and clay below that.

The lower part of the till is hard enough that crews call it hardpan.

That till is what makes water the real problem here. Rain soaks the loose upper soil, reaches the dense till and stops, so the water table sits close to the surface all winter instead of draining away.

Anything built on till needs the water taken sideways to daylight.

That is why footing drains and washed drain rock do so much of the work in this part of the state. A clean, fines-free stone keeps its voids and lets perched water move, where a minus product would compact and hold it.

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

Base, paving and paver work is scheduled for the dry months, and winter work needs the grade kept covered.

Winters here are mild and wet, so the ground seldom freezes deep. It is saturation rather than frost that softens a base, and a drive that was firm in August can rut in February.

Frost depth is set by the building official, and King County publishes 18 inches.

Questions About Ordering in Bellevue

How much material will my project need?

Each product page has a calculator, and that is the place to size a load. Quantities are ordered by the ton or by the yard, so you can order the figure the calculator gives you.

If you are unsure which product suits the job, start with what the material is for: a compacted surface, a drainage layer or a decorative bed.

Can I order material by the ton for delivery in Bellevue?

Yes. Bulk material is ordered by the ton or by the yard, and you pick a delivery date at checkout.

A dump truck tips the load on site in one pile. Delivery covers Bellevue and the surrounding part of King County, including Seattle, Kent, Renton, Federal Way and Kirkland.

Order 5/8 Minus and Decorative Rock in Bellevue

5/8 minus is the surfacing course this market builds on, and it is the material to start with for a driveway, a parking pad or a shed slab. Around it, round rock, Natural Pea Gravel and beauty bark finish the beds and the dry creek beds.

Washington Rock Supply delivers bulk aggregates across Bellevue and King County, so place your order online when you are ready.