What is the difference between crushed stone and Natural Pea Gravel?

Crushed stone is angular rock broken from quarry material. Natural Pea Gravel is rounded, water-worn stone, and Oregon yards sell it as Natural Pea Gravel rather than pea stone. The shape changes the job: angular stone locks together and holds position, while rounded stone stays loose underfoot. That makes Natural Pea Gravel a fit for paths, play areas and dog runs, and crushed stone a fit for drainage and base work.

Should I order material by the ton or by the yard?

Either works, and the choice comes down to how you prefer to size a load. Tons measure weight and yards measure volume, so the two are not interchangeable. Each product page carries a calculator to help you settle on a quantity before you order. Order online, choose your figure by the ton or by the yard, and set a delivery date at checkout.

Washington County Landscape Rock and Gravel, OR

Q: Do you deliver to Washington County?

Yes. Oregon Rock Supply delivers bulk gravel, crushed stone, sand, topsoil and fill across Washington County, including Hillsboro, Beaverton, Forest Grove, Tualatin, Sherwood, Cornelius, North Plains, Banks, Gaston, Buxton, Gales Creek, Manning, Timber and Portland. You order online, choose a quantity by the ton or by the yard, and pick a delivery date at checkout. A dump truck then tips the load at your site.

Oregon Rock Supply handles gravel, stone and aggregate delivery in Washington County, OR. The base material here is 3/4 minus, the crushed rock graded from 3/4 inch down to fines that compacts and locks up.

Ground across the Willamette Valley and Portland Basin runs to deep silt on the valley floor and red clay in the foothills. Both hold winter water, so what goes under a driveway or pad matters as much as what sits on top.

Materials Delivered in Washington County

Oregon specifies base material by top size with a minus notation. The Oregon Standard Specifications for Construction set dense-graded base aggregate in Section 02630.10 at 2 1/2 inch - 0, 2 inch - 0, 1 1/2 inch - 0, 1 inch - 0 and 3/4 inch - 0.

Section 00641.10 states that base aggregate is dense-graded unless otherwise specified. Section 02630.11 covers open-graded aggregate, the clean, fines-free material.

3/4 Minus is the standard Oregon base under driveways, parking pads, shop floors and shed bases. It is crushed rock graded 3/4 inch down to fines, so it compacts and locks up rather than rolling underfoot.

Choosing the Right Material

The minus and clean split decides most of it. A minus rock keeps its fines and compacts into a base.

A clean rock has the fines screened out and drains.

Driveway Gravel on an Oregon drive usually means a minus rock that will compact rather than a clean rock that will roll underfoot. Walkway Gravel suits garden paths that need a finer, walkable surface.

For drainage, drain rock and 3/4 clean are the open materials. RipRap armors stream banks, culvert outlets, pond edges and cut slopes, and Oregon specifies it by class from Class 50 up to Class 2000.

Yamhill County and Multnomah County sit on the same ground region as Washington County: deep slackwater silt, Jory series clay and river gravel. The base and drainage choices carry across unchanged.

Clackamas County spans more than one zone, reaching into the Cascade Range and Hood River Valley alongside the Willamette Valley and Portland Basin. Ground that changes with elevation changes what a base has to do.

Ground Conditions Across Washington County

This part of the state takes 35 to 45 inches of rain a year, almost all of it between November and March. It falls onto tight silt and clay that sheds water slowly, with a seasonal high water table in the lowlands.

That is why drainage layers earn their place. Clean, open stone under a footing drain or a downspout run moves water away instead of letting it sit against a subgrade that already holds it.

Winter rain running off bare silt scours banks on the Willamette and its tributaries, and steep foothill slopes slide. Riprap and large river rock armor those edges where runoff concentrates.

Portland treats October 1 to April 30 as the wet weather season and requires bare ground stabilized within two days, against seven days from May 1 to September 30. Base and paving work concentrates in the dry season.

Winters are mild and wet with only short freezes. Frost heave is a minor problem next to winter saturation and soft subgrade.

Delivery Across Washington County

Order online and choose a quantity by the ton or by the yard. Each product page carries a calculator, and you pick a delivery date at checkout.

A dump truck tips the load on site in one pile. Have the drop area clear and reachable, with room for a truck to turn around.

Deliveries run across Hillsboro, Beaverton, Forest Grove, Tualatin, Sherwood, Cornelius, North Plains, Banks, Gaston, Buxton, Gales Creek, Manning, Timber and Portland.

Order Gravel, Stone and Soil for Washington County

Oregon Rock Supply delivers 3/4 minus, drain rock, riprap, river rock, sand, topsoil and fill dirt across Washington County. Driveways, parking pads, shop floors, shed bases, French drains, retaining wall backfill, raised beds and decorative beds all start with the right material.

Order online, size your load by the ton or the yard, and set a delivery date at checkout.

Washington County, OR Gravel and Landscape Rock Delivery