![]() The layout of the home will also determine the number and size of footings required. A two or three story home will exert much more pressure on the soil trying to withstand the weight than a single-story home, for example. The type of house or property you’re building will impact the type, width, and amount of footings used. A weaker soil needs wider footings, which means more expensive footings. ĭoing a soil test before beginning work will help you figure out how to compensate for any weaknesses in the soil’s weight-bearing capacity. ![]() The most resilient type of soil is crystalline bedrock, which can withstand 12,000 pounds per square inch (psi), while the least resilient is clay which can only withstand 2,000 psi. Soil is generally more stable the more rock it contains, and will impact the size of the footings needed. Different types of soils have different capabilities when it comes to how much weight they can hold before sinking. These are intended to support the load of a smaller area rather than along a distributed surface.īefore putting down any footings or starting your house foundation, you should have the soil tested to ensure you are using the right strength and amount of materials. Pad footings are installed beneath a concentrated load, such as a pier or column rather than the entire wall. Ĭontinuous footings extend the entire length of the foundation and protrude beyond the sides to form a wider base and distribute the load of a wall to the soil below. ![]() There are primarily two types of footings that can be installed, continuous or pad footings. ![]()
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