Stairs ng ina mo

Riser

vertical section between two steps in a staircase

Tread

horizontal section of each step in a staircase

Nosing

the protrusion at the end of each tread

Headroom

vertical space between any step of a stair and the ceiling

Stringer

serves as support for risers and treads

Railings

angled pieces of wood or metal that run the length of the stair

Spandrel

triangular enclosure beneath the stairs

Handrail

used by people to maintain balance while climbing up or down the stairs

Baluster

A small vertical post that supports the handrail or coping.

Balustrade

A row or series of balusters connected by a handrail or coping, commonly forming the parapet of a balcony.

Bearers

Supports for winder steps that are wedged into walls and secured by the stringers.

Carriage

The structural member that supports the steps of a wooden staircase.

Close String

A staircase with a closed string and without an open newel in a dog-legged stair.

Cockel Stair

A staircase composed primarily of winding steps.

Circular Stair

A staircase with steps arranged around a circular or cylindrical plan.

Curve Out

A concave curve formed on the face of a front string.

Curtail Step

The first step of a staircase, ending in a decorative scroll that follows the shape of the handrail.

Elliptical Stair

A staircase with an elliptical plan where the treads converge toward an elliptical center.

Face Mold

A template or section produced on an inclined plane over a curved handrail plan for shaping curved members.

Flight of Stairs

A continuous series of steps extending from one landing to another.

Front String

The outer stringer located on the side of the staircase where the handrail is installed.

Fillet

A narrow band fastened to the face of the front string below the curve and extending the width of a tread.

Flyers

Parallel steps forming the straight portion of a flight of stairs.

Geometrical Stair

A staircase with flights supported by the wall at the ends of the steps, often without a central newel.

Half Space

The open space or interval between two adjacent flights of stairs.

Handrail

A sloping rail running parallel to the staircase that provides support and connects to the balusters.

Hollow Newel

An opening at the center of a staircase, as opposed to a solid central newel wherein the ends of steps are attached/

Housing

The notches in the stringboard of a stair designed to receive and support the treads and risers.

Knee

The convex bend located at the back of a handrail.

Landing

A horizontal platform that serves as a resting place between flights of stairs.

Newel

The central post or column around which the steps of a circular staircase wind.

Nosing

The projecting front edge of a tread that extends beyond the riser.

Pitching Piece

A horizontal member wedged into the wall at the top of a stair flight that supports the upper end of the rough stringer.

Pitch

The angle of inclination of a staircase measured from the horizontal.

Ramp

A sloping surface that rises continuously and may twist without the use of steps.

Rise

The vertical height between successive treads or the total vertical height from one landing to another.

Riser

The vertical face or board between two consecutive treads of a stair.

Run

The total horizontal distance from the first riser to the last riser of a stair flight.

Spandril

The triangular space or angle formed beneath a stairway.

Stairs

A series of steps used to ascend or descend between floors.

Staircase

The complete structure containing one or more flights of stairs, including landings and supports.

Stair Builders Truss

A system of crossed beams that supports the landing of a staircase.

Stair Clip

A metal clip used to secure a stair carpet in place.

Stair Head

The first step at the top of a flight of stairs or staircase.

Stair Headroom

The clear vertical distance measured from the nosing of a tread to any overhead obstruction.

Stair Turret

A projecting structure containing a winding staircase, often extending above the roof.

Stairwell

The vertical shaft or opening that houses a staircase.

Straight Flight of Stairs

A staircase with steps that are parallel to each other and perpendicular to the stringers.

Steps

The complete stair assembly consisting of a tread and a riser.

Step

A single stair unit composed of one tread and one riser.

Scroll or Curtail Step

The bottom step of a staircase with a curved or scrolled front end designed to receive the handrail.

String

The structural member of a stair flight that supports the steps and forms the soffit or underside of the staircase.

String Board

The board located beside the stairwell that receives and supports the ends of the steps.

Soffit

The underside of a staircase, arch, or molding.

Tread

The horizontal surface of a step on which a person walks, including the nosing.

Tread Length

The dimension of a tread measured perpendicular to the normal line of travel on the staircase.

Tread Plate

A fabricated metal floor plate used as the walking surface of a stair tread.

Tread Return

On an open stair, the continuation of the rounded front edge of the tread beyond the stair stringer.

Tread Run

The horizontal distance between two consecutive risers or successive tread nosings, measured perpendicular to the front edges.

Tread Width

The total width of a tread, including the projection of the nosing if present.

Wall String

The stringboard placed against a wall that receives and supports the ends of the stair steps.

Well

The open space occupied by the flights of a staircase.

Well Hole

The opening in the floor through which a staircase passes.

Well Staircase

A winding staircase enclosed by walls, resembling a well.

Winders

Non-parallel steps used to change the direction of a staircase.

Wreath

The complete helically curved section of a handrail.