Overall Thickness Of A Raised Foundation Floor

A raised slab foundation is a cross between a slab and a crawl space.

Overall thickness of a raised foundation floor.

The bulk of the floor s thickness comes from the joists which are the horizontal beams that carry the floor s weight. Concrete is formatted into a beam that runs about 2 feet deep around the perimeter of the slab foundation while the remaining portions of the foundation are at most 6. Building a wood framed raised floor foundation compares favorably to the cost of a slab on grade foundation. Size can refer to the foundation s depth the thickness of the foundation walls or the amount of concrete that is poured to make the foundation floor.

A raised floor foundation has many pros and fits most project applications. Slab foundation is essentially a flat concrete pad poured onto the ground at a home site. The point is that the house is sitting on top of these walls rather than being anchored to the ground as in a conventional foundation. The size of a house foundation depends on many factors.

This protects the wood of the floor joists from contact with the soil. Very little preparation is needed in order to begin working on a slab foundation and the actual installation is very simple. A raised floor foundation can be defined as the construction of a house on top of piers or walls that lift the floor of the house off the soil. Then they fill the entire crawl space with rock or soil for drainage and cap it with a layer of concrete.

Engineered hardwood will allow you to add subfloor thickness because the engineered come in thicknesses other than 3 4. A floating slab for a mobile home runs 4 600 to 14 000 while a standard 24 x 24 2 car garage foundation costs 3 100 to 4 800. A typical 1 200 square foot house foundation costs 6 900 to 16 200 for a concrete slab or about 40 000 for a full basement unfinished. The raised floor homeowner accrues lifelong benefits such as curb appeal comfort energy efficiency and lasting value.

Disadvantages of crawlspace foundations. Joists in home construction are usually made with 2 by 10 or 2 by 12 lumber. The installer builds a base structure of footings and a perimeter wall to support the home. In fact the floors tend to be warmer because crawlspace is conditioned.

A raised floor is also used to raise the building above a floodplain. Review the construction process that walks you through the raised floor basics from soils and footings to floor framing. If the building site has problematic soil such as expansive clays a raised floor foundation would perform much better than slab as slab would most likely crack on this type of soil. The benefit of engineered is you can add extra subfloor thickness and have a thinner hardwood floor without having tons of floor height issues.