Commercial Spiral Staircase Dimensions
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Commercial spiral staircase dimensions. After seeing the popularity of my post on residential stair design i thought it made sense to explain the guidelines from the 2006 international building code for commercial buildings and common stairs in buildings with more than two dwelling units it is much more complex and there are some exceptions if you need them so please contact me if you need help. Paragon s commercial spiral staircases are elegant and compact perfect for commercial use. Stair treads and risers shall be of uniform size and shape. 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.
Could you kindly advise on spiral staircase dimensions for a two story building in the following situation. 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. There are 3 wide projections at 11 9 and 21 9 which must serve as landing platforms. The tolerance between the largest and smallest riser height or between the largest and smallest tread depth shall not exceed 0 375 inch 9 5 mm in any flight of stairs.
Spiral stairways in accordance with section 1009 8. They re also compliant with building codes. I ve come across several homes where this staircase design mistake has been made. When working out where to put a door that fits under the stairs the obvious thing to do is to take the door height and work out how many steps need to come before the door can fit underneath.
Under staircase dimensions mistake. The most common specifications result in spirals with the following dimensions requirements. Ibc compatible spiral staircases why do you need an ibc spiral staircase. First floor to floor height 11 9 second floor to floor height 10.
Paragon provides spiral staircases for a broad number of needs both residential and commercial. As a custom shop we can build your stair to your specification so standard stair dimensions don t have to be so standard. In most cases our buyers have greater freedom of choice in terms of designing their spiral staircase however there are times when building regulations determine several aspects of the staircase from overall spiral staircase. Minimum stair diameter of 60 for a metal stair and 64 for a wood stair.
Each salter spiral stair is unique all the way down to its rotation. Commercial spiral staircases by stairways inc. These specifications show standard stair dimensions for height tread degree rotation degree and many more details for each. When you think of spiral stairs you might imagine round stairs with a beautiful 360 degree spiral that has a whimsical winding shape.