Buy 3/4 Clean in Sumas, WA

Washington Rock Supply handles gravel and aggregate delivery in Sumas, WA. Order online by the ton or by the yard, pick a delivery date, and a dump truck tips the load on your site.

Start with 5/8 minus, the crushed surfacing top course this market builds drives and pads on. It carries the fines, so it packs hard.

Across the Puget Sound lowland, rain sits on dense glacial till all winter, and that shapes what you put down.

Materials for Sumas Projects

Base and driveway surfacing does the heavy lifting on most sites in Whatcom County. Under a top course goes 1 1/4 minus, also called crushed surfacing base course or CSBC.

It runs larger and leaner than 5/8 minus, so it carries load on soft ground.

For a finished drive, farm approach or equipment pad, Driveway Gravel is sold as a blend. Pair it with 5/8 minus where you want a tight, water-shedding surface.

Washed stone is the other half of the story. Drain rock, also called 7/8 clean, has no fines left in it, so it keeps its voids and moves water sideways.

Use it in footing drains, French drains and infiltration trenches.

Washed stone and drainage rock

Drain Rock sits at the centre of any drainage detail on till. 3/4" Crushed Stone is its larger cousin, washed the same way, and goes into trench backfill, pipe surround and under-slab drainage.

RipRap armours shorelines, streambanks, culvert outfalls and cut slopes.

Sand and soil

Washed Sand goes into concrete mixes, paver setting beds and pipe bedding. The silt is washed out, which matters on a site working through the wet season.

Mason Sand is the finer grade for mortar, stucco and plaster, and for sweeping into paver joints. Washington yards also list it as plaster sand.

Top Soil comes screened and blended for lawn repair, new turf and grading out settlement. Garden Soil blends screened soil with compost for raised beds and vegetable plots.

Decorative and specialty

Washington River Rock is rounded stone, filed under round rock in local yards, and used in dry creek beds, splash pads and planting beds. Natural Pea Gravel is washed and rounded for play areas, dog runs and pipe bedding.

Railroad Ballast supports rail spurs, yard track and heavy equipment pads. Say the full name.

Ground and Conditions in Sumas

Winter rain and snowmelt soak the loose upper soil, hit the dense till cap below, and stop. The water table then sits close to the surface from October through April instead of draining away.

That perched water is the thing to plan around. Anything built on till needs the water taken sideways to daylight, which is why footing drains and washed drain rock carry so much of the load in this part of the state.

The same perched water undercuts cut slopes and fill on a smaller scale, and it is what puts the region's bluffs on the landslide maps where outwash sand meets clay. Keep granular material between the wet ground and your finished surface.

Timing matters as much as material. Under the state stormwater manual for western Washington, exposed soil must be stabilized within two days between October and April, against seven days in summer.

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

The ground seldom freezes deep here. Saturation, not frost, is what softens a base, so a drive that was firm in August can rut in February.

Frost depth is set by jurisdiction, so check with the building official for your footing depth.

Delivery to Sumas and the Surrounding Area

Bulk material arrives on a dump truck and is tipped in one pile on your site. Have the drop area clear and reachable, and know where you want the pile before the truck is on its way in.

Order online and choose your 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 your delivery date at checkout. Washington Rock Supply serves Sumas and the rest of Whatcom County, including Bellingham, Lynden, Ferndale, Blaine and Everson.

Questions About Ordering in Sumas

Do you supply contractors working in Sumas?

Yes. Washington Rock Supply sells bulk gravel, crushed stone, sand, topsoil and aggregates to contractors and homeowners working in Sumas and across Whatcom County.

You order online by the ton or by the yard, choose a delivery date, and the load is tipped on site. The same catalog covers base course, washed drainage stone, sand, soil and decorative rock for jobs of any size.

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

Yes. 5/8 minus, also called crushed surfacing top course or CSTC, is the Washington default surfacing course and it is delivered to Sumas.

It packs hard because the crusher fines stay in the blend, so it sheds water rather than soaking it up. Use it for driveways, parking pads and shed or shop slabs.

Order online by the ton or yard and pick a delivery date at checkout.

Order Base, Drainage and Surface Material for Your Sumas Project

Washington Rock Supply delivers 5/8 minus, 1 1/4 minus, drain rock, sand, topsoil and decorative stone to driveways, parking pads, drainage trenches and garden beds around Sumas. Order online by the ton or the yard, choose a delivery date, and the truck tips your load on site.