# STAIR DESIGN QUESTION-help

• posted
Can you help? Fancy stairs ? any lisps around that may help or stair
specialists ?
I am working on my own home design. I am stuck with the stairs. 1st to 2nd
floor is exactly 10 feet vertically between. 2nd to 3rd is exactly 8 feet
vertically between
The width is 12 feet
I am trying to do a common set of stairs that splits (like a Y) after a few
steps and then curves and goes up the sides of the second floor stairs. The
second floor stairs go in the opposite direction of the split first set of
stairs.
I hope that makes some sense
Will
snipped-for-privacy@sympatico.ca

• posted
Are you actually going to build them, or are you just fooling around?
Stairs are heavily regulated by building codes in Canada. In the OBC it is in Part 9 Section 8. Stairs are tricky, and I know of no shortcuts. Curved ones trickier still.
12 feet sounds like its on a stage set for a musical!
• posted
Codes are pretty singent in the US also. Design is somewhat constrained by them. Not to say there is no room for originality. Just a bit of work to do and stay in code.
• posted
On the other hand....... 10' elev. @ 7" rise =17.14 steps 10' elev. @ 7.5" rise =16 steps 10' elev. @ 7.75" rise =15.48 steps 10' elev. @ 8" rise =15 steps
8' elev. @ 7" rise =13.71 steps.........Last/First step would be 4.97" rise ////.71 x 7" 8' elev. @ 7.5" rise =12.8 steps.........Last/First step would be 6" rise ////.8 x 7.5" 8' elev. @ 7.75" rise =12.38 steps.........Last/First step would be 2.945" rise ////.38 x 7.75" 8' elev. @ 8" rise =12 steps
Not really a problem with the concept as far as I can see. Just (probably) going to have to meet code as the others stated. I "think" US code (commercial) is 7.5" rise +/- 1/4" by 11" deep. Kind of a crap shoot as far as I can see.........You pretty much 'adjust' to the 1st or 2nd step but really do notice if the first couple of steps are not traditional. (From bottom or top)
"Assuming" I haven't screwed up my figures above, you might want to look @ going to an 8" rise to keep uniform in the house. ("If allowed by code") If all else fails, you could always put in an elevator...........
Dan
• posted
The stair section of our provincial (~state) code prevents much originality, especially when it comes to "guards" (short 'walls' stopping you from falling off). From a visual design point of view, guards are most of what you see in a stair.
Typical stair geometry is confined but fairly reasonably, unless you buy those traditional rules about rise and run, which I do, in which case all kinds of awful stairs are permitted. For example, it's completely legal to do a 7-7/8" rise with a 14" run, or one with a 4-7/8" rise with an 8-1/4" run. These are both hazards in my opinion. We have a graph on the wall outlining the "sweet spot" in stair geometry within code limits, but further limited by 3 algebraic rules. We aim for the sweet spot if we can, in all designs.
I've custom designed a few completely custom stairs in Ontario, and there is hardly a more frustrating section of the code.
See
and
one still on the web. I've done very traditional ones too.
Unless the work is of a law-abiding architect/designer, if you see a stair featured in a glossy magazine up here, and it is meant to showcase someone's creativity, it is usually illegal in one obvious way or more, and probably done without a permit. It drives me nuts.
The code actually protects a new-born baby's head (4"/100mm) from being insert into openings in most guards. New-borns can't even roll over, so we are really protecting the public from baby-killers. No one asks why such a person doesn't just toss the baby over the guard, or squish them in-between two treads where the risers are open, (which also still legal to do- the open risers not the squishing) which can have a clear opening of up to 7".
I admit that I'm no expert in baby-killers rules of conduct, but I imagine them to be fairly practical, resourceful people....
• posted
Thanks to all but I think now I am going to go with spit stairs.
Thanks
• posted
Can we see them? Can you post a sketch?
• posted
User will probably post it i hope the basic drawing was sent according to the dimensions supplied.
R

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