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Flightwise Joinery - Joinery glossary Category: Architecture and Buildings > Joinery Date & country: 07/10/2013, UK Words: 50

Nosing
The edge of the tread projecting beyond the face of the riser.

Newel Base
Structural support that forms the lower section into which Newel Post is attached.

Newel Cap
The ornamental top of the newel post. Often carved shaped or turned.

Newel Post
Accommodates the strings, handrails and treads/risers of stairs.

Landing
A resting place, or wide step anywhere within the staircase or top of a flight of stairs. Landings are often used to change the direction of a stair. This is an item associated with but not supplied with the staircase.

Infill Strips
A thin wooden strip that fills the grooved space between spindles in both the baserail and underside of the handrail.

Headroom
The vertical distance from the lowest point of the ceiling above the stair to the tread nosing. This is relevant to comply with current Building Regulations. A Headroom of 2m is required at all points on and off a staircase and as you pass down a staircase.

Handrail
A protective rail designed to prevent people or objects from falling into open stairwell. A moulded rail following the pitch, or rake of the staircase

Gradient of a staircase
The ratio between the going (horizontal) and the rise (vertical); the angle of inclination.

Gooseneck
A handrail fitting consisting of an up-ramp, and a vertical turn. It is used at a landing or balcony to raise the rake handrail to the height of the balcony handrail.

Going
the going of a flight of stairs is the horizontal distance between the face of the first and last risers. The individual going of a step is measured from face of riser to face of riser and for domestic use should be a minimum of 220mm.

Glue Blocks
Blocks of wood attached to the underside of the stair at the junction of the riser and tread. These secure the risers and treads together and are used to prevent movement and so minimise squeaks.

Freestanding
Staircase which is not supported by walls. Open underneath.

Flutes
Decorative vertical grooves sometimes routed into the wood surface of spindles or newel posts.

Floor to Floor Height
The total rise of a staircase, measured from the top of the finished lower floor to the top of the finished upper floor.

Flights of Stairs
An uninterrupted series of steps reaching from one landing to the next.

Cut String
A string with the upper edge cut away to the shape of the treads and risers so that their profile can be seen from the side.

Continuous Handrail
Using straight lengths of handrail connected to handrail fittings and ramps, the handrail flows over the tops of newel turnings creating a continuous run of handrail.

Curtail Step
A decorative shaped step at the bottom of the stairs usually accommodating the volute and volute newel turning of the Continuous Handrail System.

Closed String
A string with the face housed/trenched to accommodate treads and risers, so their profile cannot be seen.

Baserail
The Baserail sits on top of the string and holds the spindles in place.

Bullnose Step
Sits at the bottom of the stairs with one or both ends of the step having a quarter circle design.

Balustrade
Collective name for the complete assembly of handrails, baserails, newels, spindles, infill and newel caps.

Baluster
The vertical member, plain or decorative, that acts as the infill between the handrail and baserail (or tread if cut string).

Winder Tread
Tread with a greater run on one side than the other. Used on circular, spiral or winder staircases.

Winders
Are radiating steps narrower at one end that are used to change the direction of a stairs through 90

Wall Rail
A handrail which is mounted onto a wall and supported by wall brackets rather than newels or balusters.

Wall Rail Brackets
Metal support for wall rail.

Wall String
The string of a staircase fixed flush with a wall.

Wedges
Tapered blocks of wood, coated in glue and used to drive treads and risers tightly into a routed string

Well Opening
The opening in the upper floor (lower floor ceiling) for placement of a staircase. From Trimmer to Trimmer

Up Easing or Up-Ramp
A handrail fitting which joins two handrails or fittings at different angles in a graceful, pleasing manner.

Top Nosing
narrow tread nosing situated above the top riser or along the upper edge of a balcony. This gives the appearance of a tread at the top of the staircase.

Strings
The inclined boards in which the treads and risers are enclosed.

Step
The tread and riser combined.

Stairwell
The space/void provided for the stairs.

Staircase
The entire structure relating to a stair, comprising steps, treads, risers, strings, balustrading, landings etc.

Stair Direction
Either right or left-hand. Determined by turn a staircase makes when facing it from the bottom.

Spindles
Turned, carved or otherwise vertical sections placed between the handrail and the stair tread or string. Also known as balusters.

Riser
The board that forms the face of the step. The maximum individual rise for domestic flights is 220mm.

Routed string
A string which has been routed out for the insertion of treads, risers and wedges.

Run
The horizontal distance covered by the entire staircase. Technically its the distance from the trimmer face to front of the first steps nosing

Soffit
The visible sloping under-surface between stair strings.

Plumb
Perfectly vertical, perpendicular with the floor.

Rail System/Railings
The balustrade. Used to describe a complete rail system consisting of the handrail,spindles and baserail.

Rake
The pitch of the stairs.

Rise
The rise of a flight is the vertical distance between the floors or landings connected by the flight. The individual rise is the vertical measurement from top of tread to top of tread.

Pitch Line
The notional line connecting the nosings of all treads in a flight of stairs.

Pitch
The angle between the pitch line and the horizontal. (or gradient of a staircase).

Open Risers
A staircase designed with only the horizontal surfaces of the treads fixed to the stair strings. The vertical spaces between treads are open.