At an installed cost of about $7,000, itâs an appliance that makes very little financial sense for most people. Tesla lists the price of the battery at $3,500, but that does not include installation, or an additional piece of equipment called an inverter that is needed to connect the battery to the home.
Strong blacktop driveways are typically built using crushed angular gravel as a base. This gravel needs to be a minimum of 6 inches thick for light vehicle traffic such as cars. If you expect larger commercial trucks on your driveway, I would install a gravel base that is a minimum of 8 inches thick. The soil beneath the gravel must also be of good quality.
You should plan on at least 2 to 3 inches of compacted gravel. That will vary widely by region. A small 15 by 20 feet driveway with 3 inches of gravel can cost as little as $250 for a base. A longer and wider driveway or a deeper base can cost $1,000 or more.The gravel base will determine the stability of the driveway.ize Matters. The square footage -- the length of the driveway times its width -- is the key factor in paving cost. A single driveway, wide enough for one car, will usually be 9 or 10 feet wide, while a double driveway will be twice that width.