Brick stairs may be of solid masonry construction or provided with arches in the lower portion. When arches are provided, the total masonry work is reduced. This space may be used as a cupboard or as a passage. Here the treads and risers are generally made equal to length of 
bricks and height of two layers of bricks respectively. Figure 21.13 shows a brick stair. The treads and risers of brick stair are finished with suitable flooring material.
Figure 21.13 Brick stair with arch opening
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