Open Stringer – sawtooth stringer, zigzag shape (treads installation directly onto the stringers).Stair Stringer – the main structural stair component, diagonal boards supporting and holding the treads and risers, transfers loads to the structure.Nosing Projection – overhang or protrusion, projection of the upper tread leading edge to the tread edge below.Stair Riser – the vertical part of a step, forming the space between steps.Step – the combination of a tread and riser.
Tread Depth – Going or the tread run including the nosing projection (Pay attention, in Building codes “Tread Depth” is often used in meaning of Going, do not confuse these terms).Going (Run) – the horizontal distance between two vertical projections of successive nosings.Rise – step height, the vertical distance between the top surfaces of adjacent treads.Stair Treads – the horizontal surface of a stair step.Main parts and components of a staircase are: cantilever staircase, suspended (treads are fixed only at one end) īefore designing your staircase, you need to know the main elements of the stairs and dimensions needed to be measured for the stairs calculation (manually or with our calculator).stringer stairs - mono stringer, double stringer or even three stringers open stringer (sawtooth) or closed stringer (housed or routed).Stairs can also be categorized according to the main types of tread support: Half turn winder staircase or double winder staircase (U-shaped, 180-degree turn),Ĭontinuous stairs are divided into three categories:.Quarter turn winder staircase (L-shaped, 90-degree turn),.Half landing stairs, switchback (U-shaped.Quarter landing stairs (L-shaped, 90-degree turn),.type of stair tread support : stringer stairs, floating stairs (mono stringer, cantilevered stair, suspended staircase).material : wooden staircase, metal, concrete, marble, etc.shape : straight flight staircases, stairs with a turn, continuous stairs, mixed stairs.There are different kinds of stairs, classified by: Please remember : low quality building materials can be responsible for staircase collapse (contains wood imperfection - knots, cracks, checks and voids)
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