Get matched with top mulch and topsoil pros in Fort Gay, WV

This will depend on the depth of the structure. For a landscape, patio, or walkway that’s around 2 inches deep, a ton of gravel will cover around 100 square feet or about 0.6 cubic yards. However, if you’re building a driveway, which should be a minimum of 12 inches deep, you’d need about 6 tons of gravel to cover the same area.

Artificial turf usually requires some sort of base. If you’re installing the grass over soil, you’ll want to add a weed barrier (weeds can damage your fake grass) and an artificial grass sub-base . Typically, this is a mixture of gravel and sand, like crushed miscellaneous base (CMB) or decomposed granite. If you're placing turf over concrete, you can skip the sub base and use a padded underlayment.

Yes, you can put new mulch over old mulch, since it’s decomposable. The only reason you should remove old mulch before laying new mulch would be to maintain a certain aesthetic. 

Before you put down grass seed, you should cultivate your soil or add two inches of topsoil. You should also put down fertilizer at the same time as your seed to prompt healthy growth. Be sure to water after you put down grass seed, especially for the first two weeks.