Strip footings are continuous strips of concrete that provide support for walls or other structures. They distribute the weight of the building evenly across the ground, helping to prevent settling or shifting. Typically, strip footings are used in residential construction for load-bearing walls. These footings are usually wider than the wall they support, which helps to spread the load over a larger area. The design and depth of strip footings depend on factors like soil type and the weight of the structure. Proper installation is crucial for the stability and longevity of the building, making them an essential component in civil engineering.