Coverage Calculators - Westurf Nursery. coverage is approximate for rock up to 1 ½” and sand, soils that are weighed. . Flagstone coverage, 120 sq. ft. per ton up to 1½” thick. Flagstone coverage, 80.rock sand per sqft hyderabad,Construction Supply Coverage Calculations - A & A Materials Inc1 1/2″ – 3″ River Rock = 90 sq. ft. per yard. 3″ – 8″ River Rock = 50 sq. ft. per ton. 6″ & up River Rock = 25 sq. ft. per ton. MULCH.
rock sand per sqft hyderabad