The purposes of the walls in buildings are to support roofs, floors and ceilings to enclose space as part of the building envelope along with a roof to give buildings form and to provide shelter and security. Modern building walls may be designed to serve as either bearing walls or curtain walls or as a combination of both in response to the design requirements of the building as a whole.
Both types may appear similar when complete, but their sequence of construction is usually different. Mansonry walls are a traditional, common and durable form of wall construction used in both bearing and curtain walls. They are designed in accordance with building codes and are constructed by individual placement of bricks, blocks of stone, cinder concrete, cut stone or combinations of these.
These walls can be exterior as well as interior walls. For brick walls, a common thickness is 230 mm(9″), and for concrete block walls, common thickness are 200 mm(8″), 150 mm(6″) and 100 mm(4″). In the building trade, the thickness of the walls excluded the plaster, so if a walls is plastered on both sides, its actual thickness will be 1″ or 1.5″. More than its stated thickness in an architectural drawing or contract.