Patio kits that are constructed attached to a portion of the house are relatively easier to build, as only three sides have to be constructed. The height of this type of pergola must be more than the height of any windows. It should be the correct height while viewing it from inside the home. In addition, pergolas that are attached the house give the advantage of having an extra space, which is actually an extension of the house. Thus, it is the perfect place to entertain guests, relax outside or hold parties in the evenings.