water washed sandstone
tehama

Tehama Water Washed Sandstone rock is from the rivers of Northern California. Water Washed is used for patios, walkways, walls, steps, and landscaping. It is a wonderful stone to use for ponds or pools. Water Washed is smooth and gray and also comes in tan. It comes in coping material, step material and boulders. It is sold by the ton in baskets or on pallets.

available sizes
DESCRIPTION THICKNESS COVERAGE AREA
Water Washed Flat Stone 1" – 2" (10" – 24" dia) 60 – 80 sf /ton
Water Washed Coping 2" – 4" (10" – 24" dia) 60 – 70 sf /ton
Water Washed Step Material 2" – 4" (12" – 36" dia) 60 – 70 sf /ton
Water Washed Step Material 3" – 6" (12" – 36" dia) 40 – 50 sf /ton
Oversize Step Material 4" – 8" (24" – 48" / 60")  
Boulders 500 – 2,000 lbs+  
ASTM SPECIFICATIONS & PHYSICAL PROPERTIES
Compressive strength across strata 18,255 psi Abrasion Natural Cleft 11.2
Compressive strength with strata 12,388 psi Specific Gravity 2.604
Flexural strength across strata 2,977 psi Weight per cubic foot 162.5
Flexural strength across strata 2,180 psi ASTM C97 Absorption 1.21%
Abrasion Thermal Face 228.2