Washed Rock

Washed Rock from East Valley Sand & Gravel

Minus, screened, and washed rock are classed based on the amount of silt or ‘fines’ included with the rocks. Minus rocks have the largest amount of dirt, screened rocks have a moderate amount and washed rocks are the cleanest. 

 

Types of Washed Rock & Uses

Washed rock includes gravel and crushed rock. While both fit the criteria for being ‘washed' and can be used in similar ways, gravel and crushed rock have distinct differences.

Washed gravel has a smooth, rounded appearance and is useful for several different applications, depending on the size.

 

  • Pea gravel is the smallest type of washed gravel, about 3/8-inch in size. It contains a spectrum of colors and as a result, is often used in above ground applications when visual appearance is important.
  • Drainage gravel is larger – about 1 ½-inches in size and as the name implies, is useful for septic systems, French drains, and drainage systems.
  • Smaller drainage gravel ranges between ¾-inch to 7/8-inches in size and is useful for landscaping and gardening projects requiring more substantial rock than pea gravel.
  • Cobbles, are rounded washed rock pieces, range in size from 1-inch (about marble-sized) up to 8-inch (a small basketball). These washed rocks can be used in loose form in landscaped areas for decorative ground cover, in waterway beds or in flower beds. When incorporated with cement mortar, cobbles form unique pathways or drives.

 

Crushed rock, like gravel, is available in several sizes ranging from 3/8-inch up to 4-inches. Since the rock has been crushed, it has sharper edges than gravel and less consistency in size. And crushed rock’s color palette is more neutral, typically available in white or grey hues.

 

  • Like gravel, crushed rock has a variety of uses, but most are underground. Smaller crushed rock – between ½-inch and ¾-inch – is used as a base for concrete pours, as backfill, for drainage systems or as pipe bedding.
  • Larger crushed rock provides a substantial, stable surface for driveways, road shoulders, and parking areas. It can also be useful for landscaped paths or garden beds. With its rough edges delivering a sharper surface, crushed rock isn’t recommended for running paths or playgrounds.

 

2” Clean Rock Price

3/4” Clean Rock

Crushed Surfacing Base Course (CSBC) 1 1/4″ X 0″ Crushed Rock

Crushed Surfacing Base Course (CSBC) packs tightly and holds in place, making it the primary base material for heavily trafficked road ways. CSBC also adds stability to bridges and muddy or wet areas. This CSBC meets the Washington State Department of Transportation (WSDOT) specifications for base course. Density tests and curves are available upon request. Please call for delivered price.

crushed surfacing base course (csbc)

Crushed Surfacing Base Course (CSBC)

Measurements

1 cubic yard of CSBC covers:

  • 1″ 324 SQ FT
  • 2″ 162 SQ FT
  • 3″ 108 SQ FT
  • 4″ 81 SQ FT
  • 5″ 64 SQ FT
  • 6″ 54 SQ FT
  • 7″ 46.29 SQ FT
  • 8″ 40.5 SQ FT
  • 9″ 36 SQ FT
  • 10″ 32.40 SQ FT
  • 11″ 29.46 SQ FT
  • 12″ 27 SQ FT

Cobbles

Cobbles are rounded washed rock pieces, range in size from 1-inch (about marble-sized) up to 8-inch (a small basketball). These washed rocks can be used in loose form in landscaped areas for decorative ground cover, in waterway beds or in flower beds. When incorporated with cement mortar, cobbles form unique pathways or drives.

cobbles

Drain Rock

7/8″ x 2″ Washed drain rock – Used for drainage and underground pipe installation.

Pea Gravel

Pea gravel is the smallest type of washed gravel, about 3/8″ in size. It contains a spectrum of colors and as a result, is often used in above-ground applications when visual appearance is important.

pea gravel