Spiral Staircase Diameter Minimum

This would be our 1448mm diameter.

Spiral staircase diameter minimum. Stair balusters shall be spaced so a 4 inch object cannot pass between. Minimum stair diameter of 60 for a metal stair and 64 for a wood stair. Tread path between handrail and center column a minimum 26 center tread width 7 1 2 in from the narrow end of the tread d. The walkine is located 50 cm 20 from the inner handrail or in the centre if the stair width is less than 1m 40.

Domestic spiral staircases come under 2 aspects of the building regulations. No matter where your stair is going you will need to keep stair diameter in mind. This spiral staircase meets minimum 2015 irc requirements. More product details close.

This states that a spiral serving 1 habitable room should have a 600mm clear width max rise of 220mm and centre going of more than 145mm. The irc stair code permits a 4 3 8 inch space. 0 in in diameter spiral staircases have 26 in. The walkline is located 50cm 20 from the outer handrail.

The usable surface of the stair tread must be a minimum of. The simplest definition of your diameter is the width of your stair as spiral stairs are round stairs. Spiral stair building code compliance. Headroom minimum of 6 6 riser height cannot exceed 9 1 2.

Which is determined by the stair s diameter. For a main stair serving 2 or more habitable rooms you require a 800mm. Although the minimum. Spiral staircases save valuable square meters because they occupy a much smaller area than a conventional staircase.

The walkline is located 2 3 of the way along the stair width measured towards the inner handrail method 4. Minimum spiral stair tread width is 26 inches salter s code platforms start at 31 inches wide. Much like your well opening your diameter may be defined by your placement of the stair. Learn about the available dimensions and sizes for spiral staircases.

The walkline is located half way along the stair width method 3. Please review technical data sheet for additional information on measurements. Landing width shall not be less than the required staircase width. The diameter of the staircase determines the width of the stair treads the minimum dimension of which is specified by the irc.

Paragon has a wide variety of prefab and custom stairs to fit any design plans. A secondary spiral stair assessing a loft basement or mezzanine will require a 600mm clear tread width. Of clear walking path. Spiral staircase diameter for domestic spiral staircases.