Random 3"-5" is graded to a 3"-5" bed depth. Face values average from 1.5 square feet to 2.5 square feet, with 30-35 square feet of coverage, per ton. The 3"-5" bed depth makes it available to use in sand-set pathways, patio and also driveways. Also, good for mosaic wall veneer and retaining walls, the larger face values make it useful as small garden steps.