Need some advice from the experienced professionals. I just got a call today about a rock install and was wondering How many tons I would need? How many hours it would take? and How much to charge for this install? Sorry for so many questions but this is my first estimate of my first year and want to make sure I am on point for pricing. The drive way is 40'x55' and the stone I would assume needs to be 2" deep since I am covering rock thats already down. The stone the customer wants is 3/4" driveway rock. If you need any more information please let me know.