More expensive flooring options include natural stone, which can easily be up to $50 per square foot, and hardwood floors, which are rarely cheaper than $12 per square foot including the price of installation.hat you will need in the bathroom will differ substantially from what you need in the bedroom. Tile is a smart choice in rooms with water and humidity such as the laundry room, kitchen and bathroom. Average costs of porcelain and ceramic are $5 to $12 per square foot, including the price of installation.
The layer that is thinnest under the oceans is the crust. While it  is thinnest in those underwater regions, it is the thickest in the  regions where mountains are.
This molten rock is the Earthâs mantle, and it comprises the largest part of the Earthâs volume. The crust we stand on is only about 30 km thick. Out in the oceans, itâs even thinner, getting down to 5 km in places. Beneath this crust is the mantle of the Earth; a region that extends down a depth of almost 2,900 km.