If there’s anyone here who knows about stairs maybe you can help. I am trying to squeeze a new code compliant staircase into our home in order that we can acccess a soon to be converted attic. I have managed to design a stair running parallel to the ceiling joists that will reach the bottom of the ceiling joists at the top of a bearing wall However to reach the finished attic floor i need one more tread and riser. A standard stringer attched to a header on the joists would faciltate the xtra tread and riser but it would mean breaking through the ceiling of the adjoining hallway (on the other side of the bearing wall).
To avoid this can I attach the stinger to the top the bearing wall and then support the final tread and riser between the 6×2 joists with metal hangers or some other suitable support?
any suggestions/help greatly appreciated
Luke
Replies
Can ya tell us the height from Finish floor to Finish floor? what Rise and run are ya using?..can you start with a landing, say witha 90 degree step? Just askin...
thanks Sphere
height from floor to floor is112". Height from lower floor to the bottom of the joists is 105"
Tread=10"
Riser=7.5"
Sorry but I am not sure what you mean by starting with a 90 degree landing.
Currently the riser height is at the max otherwise i start encroaching into headroom problems.
The stair begins on the wall opposite to the bearing wall......rises 4 steps then turns left at 90 degress using 3 winders and then heads up parallel to the joists until it reaches 105" at the intersection of the bearing wall and the ceiling joists. Its the final tread and riser i can't seem to squeeze in unless i can use the joists to suppot the final step.
Ok..I was going to suggest an up 3, make a turn on a landing then up..but the winders are figgured in already..you should be able to get the stringers and skirt between the joists that are doubled up in the well..if 2 joists were cut out and ya added yer doubles just hang the stringers to the side of the joists..I hope I am seeing this right
that's nearly a solution. Unfortunately i can't post a picture. The thing is that the if the last but one step has a riser that meets the the top of the wall and the bottom of the ceiling joist...if the stinger continues for one more tread and rise it will have to pass though this wall at such an angle that it will break through the ceiling of the adjacent hallway.................at least thats what it looks like on paper.
Can ya open the well larger where I assume the joists are headed off and and gain headroom for a different pitch?..round here is 6'8"..
sorry Sphere i am not understanding how widening the openin will give me more headroom..............i will try and post a drawing later to clear things up...........
not widen..lengthen....unless the floor space above is critical, lose a foot.
ok.
Still not sure how it would solve this problem.
Check out this picture and see what you think.
looks like if you can't make the hole in the upper floor L shaped for the winder then you can only get a max 3 rises before it turns (assume'n an 8' ceiling ht)
pony
well spotted.......... i thought of that last night. I will have to use an L shaped well. I have posted a pic of the problem now. Just look for previous posts "Stair Problem jpg"
What I see now in the diagram..Not to scale and I do not know the run from wall to wall....You can enlarge the cieling hole, you may be able to omit the winders and add a landing to get more treads out of the lower set of stairs by running them side by side..How close to 6"8" are you now? The inspecter may grandfather it in if you are close , like an inch or so...or go head and support it how ya can btween the joists and the wall below.
I would probly re-calculate the rise run including total run, put up a landing and add more treads on the lower section...hope it helps
'
I might be seeing what you're saying wrong... but if you hang the stringers with 3/4 plywood that would also come up to make your last riser... it might gain what you need
p
The last two jobs I was on both stair companies and the architects told me that for a two step winder and a 3 step winder you have to have 6" min of tread along the inside of the winder.
What that does is adds 6" more to your overall run calculation and that could cause a problem in a tight spot with head room also and I know you said you were doing it to code so was that figured in or maybe it's not code from where your from.
Joe Carola
yes the same code applies of minimum 6" winder and i have figured that in.Here's a pic so you see what i am getting at