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Will these stairs pass inspection?

Rockey

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Jun 1, 2010
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I know I still have to put the handrails up and anchor the 4X4's to the concrete but other than that does the framing look correct? At first I thought this would offer good support without having to put extra support under the stairs and take up room on my garage floor. After I got to thinking about it I thought wondered if the floor weight might actually be trying to find a route through the stair stringers because of the way i havet he stair walls attached to them. The stringer length from the top end of the stringer to the 4X4's is 113". I put the 4X4's there because the **** up against the end of the partial trusses and give them some support and they also support the last 2X12 floor joist. The other end of that floor joist is attached to a doubled up header(that the stringers rest on) with a joist hanger. Any professional opinions?
 

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Rockey

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Jun 1, 2010
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Where do you live? Those would never pass inspection here. You can't build stairs with stacked 2x6s for stringers.

Its EZ stairs. Quite a bit stronger than stringers that have been cut. In fact you can go up to 9 foot width with this design stairs. All the weight is carried by the riser. See for yourself: http://www.ez-stairs.com/
 

Sebringer

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Nov 2, 2010
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what are your step heights? Are they consistent? What's the shortest and tallest?
 

tcianci

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Walpole, Ma
My first impression is that you would need mid span stringers until you mentioned ez stairs. The load is indeed spread by the riser over to the 2x6 stringer. For those who say it shouldn't pass... 2 points... 1) The product that the OP used may actually have documentation pertaining to its code acceptability. Lots of products do, for instance joist hangers, we take it for granted that they are the correct hardware for hanging joists from one framing member to another but did you know that they are code certified, that is to say that they are designed to provide connections that meet or exceed building code requirements. The ez stair product may be code recognized as well.
The 2nd point is...compare this to a regular, conventional step cut stringer. The rule of thumb for a typical stringer is that you have 3 1/2 inches (the thickness of a 2x4) undisturbed after you cut out the triangles for the stringer. The method of construction illustrated leaves the stair with 5-1/4 inches of wood and the additional stiffness afforded by the top 2x6 which becomes structurally functional if by no other means than being tied in by the hanging studs.

I am assuming that the vertical framing is going to be covered by some type of wall finish (drywall, etc.) to bring the stair guard system into compliance.
 

Rosco

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South Georgia
I looked into those before stick building mine. Very strong design and looks good. The only thing I might add (nothing to do with code) is possibly some bracing from the doubled floor joist (stair header) to the next floor joist to act as an extra brace for the header and extra floor support where it will constantly be stepped on at the top of the stairs.

Looks great!
 
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Rockey

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I looked into those before stick building mine. Very strong design and looks good. The only thing I might add (nothing to do with code) is possibly some bracing from the doubled floor joist (stair header) to the next floor joist to act as an extra brace for the header and extra floor support where it will constantly be stepped on at the top of the stairs.

Looks great!
Great idea. I never thought about that. That's why I asked.
 

BlindViper

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How big is your landing? Code here is at least a 36" landing. The measurement being from the outside wall to the face of the riser.
 

akdiesel

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Wasilla, AK
Not sure if I missed it or not, but are the supports attached to the floor or just sitting on the concrete?
As mentioned with sheetrock if used you will need to have fire blocks for each stud going up the wall.
 

creator

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Oct 25, 2010
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The maximum rise is 7 3/4" and min tread is 10" with no more variance from top to bottom then 3/8". You will need a hand rail and balusters max 4" apart where the wall stops going down the stairs, or continue the framing down to the platform. You will need a hand rail and balusters from the platform to the concrete floor if platform is more then 30" off the concrete floor. It would be best to call your building inspector and ask him/her for your local codes. They may be different in your area.
 
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Rockey

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How big is your landing? Code here is at least a 36" landing. The measurement being from the outside wall to the face of the riser.

Overall the landing is 48"X48". From the face of the riser to the end of the landing it is 38".


I started this post originally because I was concerned about the length of the stringer between the 4X4 supports and the stringer header. I saw a chart a chart (I think from EZ stairs) and I think the maximum length for my width stairs was about 103". Mine is 113". To compensate I thought the hanging studs that are atached to the stringers at the bottom and the 2X12 floor joist at the middle and then continue up to form the wall around the stairwell would place some of the load back into the 2X12 floor joist. In hindsight I wondered if the floor load might actually place a load back into the stringers if there was enough people on the floor around the stairwell wall. This would cause the 2X12 to sag slightly down and put load into the stringers. Does this make sense? Should I be concerned? It would be simple to fix with some more support under the stairs into the concrete but I dont want to use this valuable garage floor space for this.
 

Sebringer

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Nov 2, 2010
Messages
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You're only 10" off. You could always run a diagonal 4x4 from the current 4x4 post to the stringers. And probably shorten that 103" even. Wouldn't hurt you floor space either.
 

BlindViper

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Location
York, PA
The maximum rise is 7 3/4" and min tread is 10" with no more variance from top to bottom then 3/8". You will need a hand rail and balusters max 4" apart where the wall stops going down the stairs, or continue the framing down to the platform. You will need a hand rail and balusters from the platform to the concrete floor if platform is more then 30" off the concrete floor. It would be best to call your building inspector and ask him/her for your local codes. They may be different in your area.

Code here is a max rise of 9" and min tread of 9" or a 45 deg angle.
 
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