Stairs are often described in terms of rise and run. Rise is typically between 6" and 8", and the run between 10" and 12". In metric plans, rise is 177 to 190 mm, and the run about 250 mm.
| A good rule of thumb is that rise plus run should equal 18" for a comfortable stair step. Any rise over 7 1/2" is considered steep regardless of the run.
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Balusters - The vertical members that run between the handrail and the treads.
Bracket - Decorative L-shaped supports on the exposed side of stairs below each tread.
Landing - The platform connecting two stair sections.
Newels - The end post of a stair railing located at landings and the beginnings and endings of new stair sections.
Rise - The height of a riser.
Riser - The vertical member of stairs between the treads.
Run - The width of a stair tread.
Runner - The carpet that runs down the center of the staircase.
Shoe - The bottom railing, placed on the landing floor, that anchors the balusters at landings.
Stringer - The inclined support member of a staircase that supports the treads and risers.
Tread - The horizontal member of a stair the foot is placed on.
Winder - A wedge-shaped stair tread used where curved or angled stairways change direction.
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