Check these stairs out

[GHRoberts]

Does anyone want to run the numbers on the stairs and provide some proof that the stairs are unsafe? (I am going to ignore the untreated wood fastened to the concrete. That is a prescriptive issue.)

 

[tbz]

Jayhwak & Francis Ive been waiting for specific comments other than remarks and have not seen any, so I will follow up with this.

1. Till this day I can't seem to get my mind around how many people really have no clue how to build stairs and that they waste vasts amounts of money on materials trying when it is cheaper to buy a set from a wood stair supplier.

For the record I don't build wood stairs we only do metal, and have priced many a wood stairs, a set of stairs for that project Jayhawk would run $325.00 each in pine closed stringers, my point being garbage in garbage out.

2. The landing from what I can see seems to have 1/2" flake board and not 3/4" sub-floor, not sure there, but not good here.

3. Not sure how they are closing in the risers for 4" sphere requirement but someone commented on no center stringer. Well, they might not need one, If they plywood the backs of the risers or put cross bottom joist no center stringer would be required.

4. Here they would require that Pressure treated lumber be set to the walls with anchorage then hangers and the 2x4 for the landing I believe need to be Min. 2x6, I could be wrong there, just never seen them used like that before.

5. As for the really bad top cuts, loss of landing attachments and just less than good workmanship I believe others have covered that issue.

3. Here they would require that Pressure treated lumber be set to the walls with anchorage then hangers and the 2x4 for the landing I believe need to be Min. 2x6, I could be wrong there, just never seen them used like that before.

 

[Francis Vineyard]

Jayhwak & Francis Ive been waiting for specific comments other than remarks and have not seen ....

Tom,The story behind my pictures is an architect bought this old house and attempted to renovate it himself. After realizing being in over his head he hired a couple of contractors and fired them over the course of 3 years for taking too long. Finally hired a knowledgeable contractor who invited me to see what he had taken over and wanted my take on what he should do. Since it’s not my money to spend my answer was what do you want to do? He’s going to replace the joist with a 3’ landing cantilevered 9’ back under a knee wall, remake the stairs, etc. Usually a good contractor will have a better fix than the minimum. Daddy-0- Do I get credit for wearing my hard hat?View attachment 346

View attachment 346

/monthly_2011_01/572953bd323e6_StairFail001.jpg.31b1f3ee372d9f1630fe9cbe4777f76d.jpg

 

[DRP]

Francis, I'm curious about the thinking here. Are the stringers and imposed loads hanging from this cantilever or do you see the stringers supporting the overhanging landing? Not saying either wouldn't work just thinking it through.

 

[Francis Vineyard]

DRP, the problem is the landing shown in the pictures is not cantilevered, it was a floor supported at both ends, when the floor joist was cut to make the stairway; the floor joist became an end beam so to speak held up by the stringer.

For me these pictures among many give evidence for the need to prescribe minimum stair design.

Hope this answered your question.

 

[RJJ]

Isn't it amazing what we find in the field!

 

[fireguy]

You all missed the point. The stairs are built like that to keep those pesky inspectors on the ground floor where they belong.