| Tread
going |
|
The
step that you walk on |
| Tread
rise |
|
The
vertical height between the top of one tread to the next |
| Pitch
Line |
|
The
angle of the stair measured from the front of each tread Shows
how steep the stair is. Particularly relevant for modular and
spacesaver stairs. |
| Staircase
going |
|
The
overall length of the staircase along the floor |
| Floor
to floor height |
|
The
height the staircase will rise from each finished floor to the next |
| Floor
to ceiling height |
|
The
height from the finished floor to the underside of the ceiling |
| Stairwell |
|
The
opening in the floor in which the staircase will be situated |
| Clear
Tread Width |
|
The
walking width between handrail to handrail or handrail to centre
column |
| Baluster
or Spindle |
|
The
vertical post connecting the tread to the handrail |
| Landing
Balustrade |
|
The
balustrade protecting the stairwell |
| Landing
Tread Balustrade |
|
The
balustrade on the landing tread |
| Stairwell
Balustrade |
|
The
balustrade protecting the stairwell |
| Diameter |
|
The
overall width of a spiral staircase (outer edge to edge) |
| Landing
Tread |
|
The
top step of a spiral staircase connecting the landing to the centre
column |
| Winder |
|
A
shaped tread which forms a turn in a straight staircase.
Usually three or four treads create a quarter or 90 degree turn. |
| Modular |
|
A
straight staircase which can also have one or two quarter turns
inserted, supplied in component form. |
| Spiral
Stair |
|
A
circular staircase where the treads rotate around a centre column |
| Helical
Stair |
|
A
circular or curving staircase where the treads rotate around a
central void |
| Dog-leg
Stair |
|
A
straight staircase with one quarter turn |
| Riserbar |
|
A
bar or strip which is inserted between the treads of an open plan
staircase. This should ensure that the gap between the treads
is less than 100mm (4") to comply with the UK Building
Regulations gap rule |
|
|
|