In the case of masonry buildings, the total area of the window and door openings in any single elevation should be less than the total area of solid wall. Openings should be arranged so as to emphasise the visual strength of the wall by allowing as wide a solid pier as possible between openings. Openings should also be positioned as far as possible from the corners of the building to give an impression of solid corner buttressing. This approach can be varied in the case of timber-framed buildings where an impression of lightness is appropriate. In such cases, the module of the frame should determine the positioning of the openings.