There are various components of staircase which have their own functions. Today, I ma going to discuss those each components of a staircase and their details in this article.

Components of Staircase and their Details

Following are the varied components of staircase,

Step

The step consists of the tread and riser.

Tread

The a part of the stairway that's stepped on. it's constructed to an equivalent specifications (thickness) as the other flooring. The tread “depth” is measured from the fringes of the step to the vertical “riser” between steps. The “width” is measured from one side to the opposite .

Riser

The vertical portion between each step on the stair. this might be missing for an “open” stair effect.

Nosing

An edge a part of the tread that protrudes over the riser beneath. If it's present, this suggests that, measured horizontally, the entire “run” length of the steps isn't simply the sum of the tread lengths, because the treads actually overlap one another slightly.

Starting step or Bullnose

Where stairs are open on one or each side , the primary step above the lower floor could also be wider than the opposite steps and rounded. The balusters typically form a semicircle round the circumference of the rounded portion and therefore the handrail features a horizontal spiral called a “volute” that supports the highest of the balusters.

Besides the cosmetic appeal, starting steps allow the balusters to make a wider, more stable base for the top of the handrail.

Handrails that simply end at a post at the foot of the steps are often less sturdy, even with a thick post. A double bullnose are often used when each side of the steps are open.

Stringer, Stringer board or sometimes just String

The support that supports the treads and risers. There are typically two stringers, one on either side of the stairs; though the treads could also be supported many other ways. The stringers are sometimes notched in order that the risers and treads fit into them.

Stringers on open-sided stairs are often open themselves in order that the treads are visible from the side. Such stringers are called “cut” stringers. Stringers on a closed side of the steps are closed, with the support for the treads routed into the stringer.

components of staircase

Winders

Winders are steps that are narrower on one side than the opposite . they're wont to change the direction of the steps without landings. A series of winders form a circular or spiral stairway. When three steps are wont to turn a 90° corner, the center step is named a kite winder as a kite-shaped quadrilateral.

Trim

Trim (e.g. quarter-round or baseboard trim) is generally applied where walls meet floors and sometimes underneath treads to cover the reveal where the tread and riser meet. Shoe moulding could also be used between where the lower floor and therefore the first riser meet. Trimming a starting step may be a special challenge because the last riser above the lower floor is rounded.

Flexible, plastic trim is out there for this purpose, however wooden mouldings are still used and are either cut from one piece of rounded wood, or bent with laminations Scotia is concave moulding that's underneath the nosing between the riser and therefore the tread above it.

Banister, Railing or Handrail

The angled member for handholding, as distinguished from the vertical balusters which hold it up for stairs that are open on one side; there's often a railing on each side , sometimes only on one side or not in the least , on wide staircases there's sometimes also one within the middle, or maybe more.

The term “banister” is usually wont to mean just the handrail, or sometimes the handrail and therefore the balusters or sometimes just the balusters.

Volute

A handrail end element for the bullnose step that curves inward sort of a spiral. A volute is claimed to be right or left-handed counting on which side of the steps the handrail is together faces up the steps .

Turnout

Instead of an entire spiral volute, a turnout may be a quarter-turn rounded end to the handrail.

Gooseneck

The vertical handrail that joins a sloped handrail to a better handrail on the balcony or landing may be a gooseneck.

Rosette

Where the handrail ends within the wall and a half-newel isn't used, it's going to be trimmed by a rosette.

Easings

Wall handrails are mounted directly onto the wall with wall brackets. At rock bottom of the steps such railings flare to a horizontal railing and this horizontal portion is named a “starting easing”. At the highest of the steps , the horizontal portion of the railing is named a “over easing”.

Core rail

Wood handrails often have a metal core to supply extra strength and stiffness, especially when the rail has got tocurve against the grain of the wood. The archaic term for the metal core is “core rail”.

Baluster

A term for the vertical posts that delay the handrail. Sometimes simply called guards or spindles. Treads often require two balusters. The second baluster is closer to the riser and is taller than the primary .

The extra height within the second baluster is usually within the middle between decorative elements on the baluster. That way rock bottom decorative elements are aligned with the tread and therefore the top elements are aligned with the railing angle.

Newel

A large baluster or post wont to anchor the handrail. Since it's a structural element, it extends below the ground and subfloor to rock bottom of the ground joists and is bolted right to the ground joist. A half-newel could also be used where a railing ends within the wall.

Visually, it's like half the newel is embedded within the wall. For open landings, a newel may extend below the landing for an ornamental newel drop.

Finial

A decorative cap to the highest of a newel , particularly at the top of the balustrade.

Base Rail or Shoe Rail

For systems where the baluster doesn't start at the treads, they are going to a base rail. this enables for identical balusters, avoiding the second baluster problem.

Fillet

A decorative filler piece on the ground between balusters on a balcony railing.