Spiral stair building code compliance.
Spiral staircase minimum diameter.
Determining your spiral stair s footprint can help you find the best size spiral staircase for your design.
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Of clear walking path.
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Mylen stairs condor black 42 in diameter 12 treads with 1 36 in tall platform rail spiral stair kit.
The total diameter of your spiral staircase however may be limited by the amount of space you have available.
These spirals are designed to be used by individuals generally familiar with the stair and are classed as secondary or primary.
From here the footprint will increase in 6 increments like the diameters.
A secondary spiral stair assessing a loft basement or mezzanine will require a 600mm clear tread width.
Headroom minimum of 6 6 riser height cannot exceed 9 1 2.
Paragon has a wide variety of prefab and custom stairs to fit any design plans.
Please review technical data sheet for additional information on measurements.
Landing width shall not be less than the required staircase width.
The usable surface of the stair tread must be a minimum of.
The irc stair code permits a 4 3 8 inch space.
Generally speaking the wider your staircase is the better it will look and the safer it will be.
Arke phoenix 47 in x 10 ft white spiral staircase kit.
Give your staircase a minimum diameter of 26 inches 66 cm.
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.
Stair balusters shall be spaced so a 4 inch object cannot pass between.
The diameter of the staircase determines the width of the stair treads the minimum dimension of which is specified by the irc.
Minimum spiral stair tread width is 26 inches salter s code platforms start at 31 inches wide.
Learn about the available dimensions and sizes for spiral staircases.
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This spiral staircase meets minimum 2015 irc requirements.