I have a really narrow space trying to fit in a u shaped stair case are 36" stairs too narrow?

[cbucks]

Curious everyone's opinion on this whether this will be something will regret?  

[rgardner]

15 minutes ago, cbucks said:

Curious everyone's opinion on this whether this will be something will regret?  

Makes it that much harder to move furniture or larger items.  Add in the winder stairs and it makes it even harder.  I personally don't like to do stairs narrower than 39" and prefer 42... FWIW

[cbucks]

Thanks definitely a concern

[Doug_N]

It would be really important to talk to a code expert about the winders doing 180 degrees.  Most authorities only allow 90 degrees.  

[Gawdzira]

What you show in that image is illegal in the US and Canada.

[javatom]

IRC code would require 6" as the narrowest point of the tread.   The stair you show has 0".

[GeneDavis]

And yet it's seen in plenty of photos of homes for sale.  
 

 

[Doug_N]

Here is the code for winders in stairs in Canada (using the Ontario Building Code version).

 

Here is what the code says about the narrow end of tapered stairs (as in winders).

 

Ontario Building Code - Volume 1, O. Reg. 332/12, Article 9.8.4.3. of Division B

9.8.4.3. Dimensions for Tapered Treads

(1) Except as provided in Sentence (2) and Articles 9.8.4.5. and 9.8.4.5A., tapered treads shall have a run that,

(a) is not less than 150 mm (5-7/8") at the narrow end of the tread, and

(b) complies with the dimensions for rectangular treads specified in Table 9.8.4.1. when measured at a point 300 mm (11-13/16")  from the centre line of the inside handrail.

(2) Tapered treads in required exit stairs shall conform to the requirements in Article 3.4.6.9.

(3) The depth of a tapered tread shall be not less than its run at any point and not more than its run at any point plus 25 mm .

 

Ontario Building Code - Volume 1, O. Reg. 332/12, Article 9.8.4.5. of Division B 
 9.8.4.5. Winders

A-9.8.4.5. Winders.
(1) Stairs within dwelling units are permitted to contain winders that converge
to a centre point provided,
(a) the winders turn through an angle of not more than 90°,
(b) individual treads turn through an angle of not less than 30° or not more
than 45°, and
(c) adjacent winders turn through the same angle.
(2) Where more than one set of winders described in Sentence (1) is provided in
a single stairway between adjacent floor levels, such winders shall be separated
in plan by at least 1 200 mm  (47 -1/4").