A load bearing wall is exactly what the name would suggest, a wall responsible for carrying the weight of the structures above it. In a multi-story home, for example, the load bearing walls are responsible for carrying the weight of the floors and walls above them, and in single story homes the load bearing walls help to support the roof. Not every wall in the building is a load bearing one, and it is important to know the difference before conducting any renovations.
Before you do anything to seriously modify a wall in your home, it is important to have an expert come into the home to guarantee that it is not a load bearing wall. If you are planning a serious renovation in your home, working with an expert is the best way to ensure that you only operate using walls that are safe to alter, or that the right preparations are made when you do need to change a load bearing wall in the building. Working with a professional in home renovations and repairs is the best way to ensure a successful renovation, since the professional will be able to help you protect load bearing walls and prevent surprises along the way.