Can spiral stairs be used as...........

[JayHawkInspector]

I have a second floor deck that is going to be used for a smoking area. It has two forms of egress but one is a spiral stair, is this possible?

View attachment 1387

View attachment 1387

/monthly_2010_09/deck.jpg.0fbbcf42deebcf1df5f026e449fd203b.jpg

 

[Yankee]

1009.8 Spiral stairways.

Spiral stairways are permitted to be used as a component in the means of egress only within dwelling units or from a space not more than 250 square feet (23 m2) in area and serving not more than five occupants, or from galleries, catwalks and gridirons in accordance with Section 1015.6 (Stages)

 

[peach]

How big is this deck? If only one means of egress is required, the spiral stair may be allowed.

 

[mtlogcabin]

Counting the chairs there is an OL of 96. Spiral stair not permitted

 

[Builder Bob]

Best answer.. That depends - I can have a spiral stairway as long as the tread depth measure a minimum of 11 inches@ 12 inches from center of rotation, provide a minimum of 36" clear, and the tread depth never gets below 10 inches minimum..... In other words, a really BIG spiral stairway.....Not teh one depicte din the drawing

 

[TJacobs]

What mtlogcabin said.

 

[fatboy]

Ditto........

 

[BayPointArchitect]

If your two required means of egress is not dependant on the spiral staircase or the spiral staircase is a third option, then everything is okay - provided that the spiral staircase meets the minimum requirements mentioned above (treads, risers, width... IBC 1009.8). A slippery slide would also work well to get from the deck to the area below.

 

[Yankee]

If your two required means of egress is not dependant on the spiral staircase or the spiral staircase is a third option, then everything is okay - provided that the spiral staircase meets the minimum requirements mentioned above (treads, risers, width... IBC 1009.8). A slippery slide would also work well to get from the deck to the area below.

I agree, but if you DO use the slippery slope in this instance, you are likely to end up in the fire pit.

 

[Yikes]

On the plus side, that fire pit is the ultimate cigarette lighter for the smoking area...