What is the smallest spiral staircase diameter UK?
What is the smallest spiral staircase diameter UK?
Personally the smallest spiral I have walked up is a 1000mm diameter. I am a male of average height and build and found it extremely tight with hips brushing the handrail and the centre column….Building Regulations.
DIAMETER | CLEAR TREAD WIDTH |
---|---|
1800mm | 775mm |
1900mm | 830mm |
2000mm | 890mm |
How wide does a spiral staircase have to be?
National Building Codes (BOCA) or Uniform building code requires a minimum of a 60″ diameter spiral with 30 degree treads and a 4″ on center maximum spacing for balusters.
What is the smallest spiral staircase?
The smallest spiral stair diameter that we offer is 3’6”, which translates to a 42” x 42” footprint….Well Opening.
Well Opening Requirements | |
---|---|
Stair Diameter | Opening |
5′ 6″ (66×66″) | 68″x 68″ |
6′ 0″ (72×72″) | 74″x 74″ |
What is the minimum width of a staircase UK?
When it comes to staircase width, there are no restrictions as such, but standard flights measure 860mm, and for a main staircase it is agreed that a width of between 800mm and 900mm works best. A minimum staircase width of 600mm is recommended for secondary staircases.
Do spiral staircases save space?
The main reason spiral stairs were invented was to save floor space. Spiral Staircases do take up less space than conventional staircases. This is because the steps are all located within the diameter of the spiral, regardless of the height.
What are the building regulations for spiral staircases in the UK?
The document governing spiral staircase building regulations in the UK is British Standard 5395 part 2. This document is summarised in the table below with categories given for each spiral application and the relevant maximum riser heights and minimum widths.
What is the diameter of a spiral staircase?
Typically, spiral staircases have a diameter no smaller than 3 ½ feet but can be as wide as 6 feet. Diameter dimensions are represented as 48”x48” and 54”x54”.
What is the 100mm sphere rule for spiral staircases?
All building regulation spiral staircases should comply with the 100mm sphere rule, i.e there must be no gaps greater than 99mm anywhere on the spiral staircase.
How much headroom do you need for a spiral staircase?
Finally, at any point on the spiral you will need a minimum of 2000mm of headroom. On a spiral staircase, each rise will be between 200 and 220mm to ensure that this last requirement is achieved as you walk up and under the staircase. This is often overlooked when a staircase is being used to access a room with an apex roof.