Product Coverage Chart MaterialAmountCoverage *(3” depth) Decorative Rock1 ton covers75-85 sq. ft. * (45-60 sq. ft. for 1 1/2″ – 3″ rock) Lava Rock1 ton covers200 – 210 sq. ft.* Driveway and Paver Base (Class 2, Class 5)1 ton covers65-75 sq. ft. * 10 more rows