Pergola is a half-open space that is usually used for relaxation and recreation in open space. Pergola is a customized framed structure in open space that is built of wood or metal.
As we need a space to relax and enjoy outdoors, we usually use a roof to have shades while enjoying the view.
Pergolas usually have a specific design or they are pre-built. Tailoring the design to the area of interest is more desirable and preferred.
The structure of pergola contains beams to hold the flat or arched roof. It also can hold plants growing over them.