A flat surface, especially one in a series, on which to place one's foot when moving from one level to another. all step is composed of tread and riser.
This riser is the vertical portion between each tread on the stair.
Not all stairs have risers. The rise-less steps are called the open thread.
Open riser stairs have grown in popularity Recently years. Closed tread stair has risers included.
This vertical board forms the face of the step, also forms the space between one step and the next.
Rise provided could be uniform. It is normally hight 150 mm to 175 mm in residential buildings while it is kept between hight 120 mm to 150 mm in public buildings.
However, in commercial buildings, more rise is provided from the consideration of the economic floor area.
Nosing is the flat protruding edge of a stair at which most foot traffic occurs.
Mostly, it's the half curved molding fixed into the ends of those threads exposed at a half that covers where the balusters fit into the treads.
Nosing is the border of the tread projecting beyond the face of the riser and the face of a cut string. This is the place where the thread above a riser overhangs it. Sometimes, the tread may not have a nosing.
Where stairs are open both sides or on one or, the first step above the lower floor might be wider than the other steps and round.
The balusters usually form a semicircle around the circumference of the rounded portion, and the handrail has a horizontal spiral known as a"volute" which supports the top of the balusters.
Aside from the cosmetic appeal, beginning steps allow the balusters to form a wider, more stable base at the end of the handrail.
Handrails that simply end in a post at the foot of the stairs can be sturdy, in spite of a thick post. A double bullnose may be used when either side of the staircase is open.
The angled member for handholding, as distinguished by the vertical balusters that hold this up for stairs which are open on either side; there is often a railing on each side, sometimes only on one side or maybe not at all, on wide staircases, there's sometimes also one at the middle or more.
Banister Definition: The term"banister" is sometimes utilized to mean just the handrail, or sometimes the handrail and the balusters, or sometimes just the balusters.
A volute is a handrail end element for its curtail or bullnose footsteps that curve inward, such as a spiral. It's said to be left or right-handed, depending on which side of the handrail is as one faces up the stairs.
The detail is similar to a scroll in the entry of a handrail, sometimes known as a monkey's tail. Available with an up-ramp, it's installed in the bottom of this side on a starting step, extending out from this side of the staircase.
But, it's the most difficult installation procedure you are able to find in a staircase
The wood handrails often have a metal core to provide extra stiffness and strength, especially when the rail must curve against the grain of their wood.
As per archaic term for the metal, the core is"core rail."
A balustrade is a row of small posts that are supported by a railing. It is a common architectural feature that can be seen on the edges of terraces and staircases.
The posts are called balusters, a name coined in 17th-century Italy for the bulbous item's resemblance to blossoming pomegranate flowers.
Balustrades are also known as railings. They are often used to guard stairways, balconies, and decks from accidental falls.
Their main aim is to offer protection and safety, stopping people from falling.
For systems in which the baluster doesn't start at the treads, they go to a base rail. This allows for identical balusters, avoiding this second baluster problem.
This is the width of the tread between two successive risers. In other words, it is the horizontal distance between the faces of two consecutive risers.
A flight of stairs is a set of steps between two floors or landings. A flight of stairs can be straight, spiral, or curved.
The steps are evenly spaced and have the same rise and run per tread. A flight of stairs can be considered a single flight even if the staircase is not continuous.
The number of steps in a flight of stairs can vary depending on factors such as the height of the floors being connected, the building code requirements, and the purpose of the stairs.
Headroom is the height between the top of a stair and the ceiling. The minimum headroom for a staircase is 6 feet 8 inches (203.2 cm).
This is the vertical distance between one flight of stairs to the next floor slab. The minimum headroom is required for every stairway.
To prevent injuries, you should add a headroom measurement of at least 6–7 feet (1.8–2.1 m). You can also apply a layer of soft material on the underside of stairs to avoid injuries to the head.
The pitch of a staircase is the angle between the line of the stairs and the horizontal. The pitch should be between 25 and 40 degrees.
This range provides a good balance between safety and ease of use. A pitch that is too steep can be difficult to climb, while a pitch that is too shallow can be tiring and may take up too much space.
The width of the landing should not be less than the width of the stair. The number of steps should be no more than 12 and no less than 3 in a flight. Headroom must not be less than 2.05 m.
The run of a staircase is the horizontal distance between the leading edge of one tread to the leading edge of the next tread. The run is also known as the tread.
The run is how long each step is. The run should be at least 9–10 inches (23–25 cm) so people have enough room to step.
The run is measured from the outer edge of the step, which includes the nosing if it is present, to the vertical portion of the stair called the riser.
The run is how long the staircase is, based on how deep each stair tread is. In the US, there is a sort of golden rule around “18” which would make an 8″ rise above a 10″ step.
Soffit is the underside of a staircase, usually the underside of the treads. It runs vertically along the side of the stairs, usually above the handrail.
The soffit supports the upper area of the stairs and may also act as an ornamental feature. It can be left open or covered with materials such as wood or plasterboard.
Scotia is a type of molding that sits under the nosing or tread of a staircase. It's a concave molding that sits between the riser and the tread above it.
Scotia is used to beautify the step of elevation and provide strength to the nosing. Soffit is the underside of a stair. It's the visible sloping under-surface between stair strings.
Spindles, also known as balusters, are vertical sections placed between the handrail and the stair tread or string.
A waist slab is a horizontal structural element in a staircase that connects the stair treads and risers. It's like a ramp with steps.
The waist slab supports the weight of the stairway and any loads placed on it. The steps of the staircase can be made of bricks or concrete.
The waist slab is laid with an inclination to follow the raise of steps. The inclination of the slab is determined by the location height of the landing slab.
The waist slab is the curved section of a stairway between two consecutive flights. It's probably more used as a slang term than a professional technical word.
A spandrel is the triangular space underneath a flight of stairs when there is no other flight of stairs beneath it. Homeowners can use this space as storage closets.
The spandrel is a term used in stair terminology. The incident radiation decreases with increasing spandrel height.