Spiral Staircase Regulations

The document governing spiral staircase building regulations in the uk is british standard 5395 part 2.

Spiral staircase regulations.

Vertical clearance above any stair tread to any overhead obstruction is at least 6 feet 8 inches 203 cm as measured from the leading edge of the tread. 1067mm diameter can have 1 extra victoria or plain baluster. 1910 25 b 3 stairs have uniform riser heights and tread depths between landings. Spiral staircase code overview.

1917 121 b 1 stairways shall conform to the minimum dimensions of figure f 1. In situations where space is limited the diameter is at the discretion of the building inspector. The rules within part k don t apply to spiral or helical staircase designs. The usable surface of the stair tread must be a minimum of 26 inches in width measuring from the center of the staircase to the outer handrail.

So if the client is ordering a scandinavian parisienne or a victoria 1067 or 1194mm it must have riser bars. K1 building regulations states that there is no minimum width requirement for a spiral staircase but it should be built in accordance with bs 5395. Spiral stairways shall meet the following requirements. All building regulation spirals must comply with the 100mm sphere rule i e there must be no gaps greater than 99mm anywhere on the spiral staircase.

The clear walking path on a particular staircase. It is important to note that where there is a contradiction between bs 5395 part ii and part b and m of the building regulations part b and m take precedence. Spiral stairs must meet the vertical clearance requirements in paragraph d 3 of this section. Our spiral stair building code and ibc stair code specifications provide technical details about the different code and non code packages we offer for commercial and residential projects.

Spiral or helical staircase regulations part k of the building regulations provides the guidelines for ensuring occupants or visitors to a house are protected against falling collision or impact.