When installing slate, marble, travertine, granite, and other natural stones, a lot of work goes into preparing the subfloor, which needs to be very level and clean. Stones can crack if the subfloor is not perfect. Natural stone floors need to be sealed.
Like stone floors, ceramic and porcelain tiles are pressed into a mortar and joined together with grout. Inherently waterproof porcelain tiles are the most durable tiles available. They are more dense and brittle than ceramic, and therefore, harder to cut.
Carpeting is pulled across the floor with a carpet stretcher. It must lay flat throughout the room, and seams must be joined together so they are hidden as much as possible. Patterned designs sometimes present challenges. The correct padding must be used to guarantee durability.