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  1. nomi640

    Removing the Stud for renovation

    Hello All I am planning some renovations and considering removing a stud marked in the attached photo. I’ve also included the structural floor layout for reference. Could a structural engineer advise if removing this stud could cause any structural issues? Any tips for safe removal, if viable...
  2. nomi640

    Mono Stringer Stairs deflection issue

    Here is another response from supplier "Yes I see on the first video (with standard width stair). The flexion seems acceptable but not the torsion. That is obviously a problem of attaching plate and/or starting block, unless the bolts are not tighten enough which I doubt. Here is some pictures...
  3. nomi640

    Mono Stringer Stairs deflection issue

    Here is some more thoughts from supplier I know it can be counter-intuitive, but the very solution is to make sure the endings are secured. The thickness of steel, wether 4.76mm or 6mm, as being simulated and real-life tested with our prototypes, shows that it has a very limited impact. The...
  4. nomi640

    Mono Stringer Stairs deflection issue

    Hello Thanks all, Since I am not structural engineer, I may be not understanding all the comments, I will really appreciate if I can get some sketches to understand your recommendations. Meanwhile I got this response from Bocani "In regards of the stair steel structure, the best is to fix the...
  5. nomi640

    Mono Stringer Stairs deflection issue

    Thanks @Tmoose, I will do all these checka first before making any changes.
  6. nomi640

    Mono Stringer Stairs deflection issue

    @HotRod10, Thanks for suggestion I will try this before making big changes. Thnaks,
  7. nomi640

    Mono Stringer Stairs deflection issue

    Does this wooden LVL will work? I know it will change the look completely but it will be still mono stringer stairscase with much wider beam in middle
  8. nomi640

    Mono Stringer Stairs deflection issue

    I just called wooden stair guy to come and suggest what he can do to fix the issue He suggested he will do two LVL on both side and connect both LVL from bottom with MDF and close all middle stringer from top with MDF will help He suggesting to box in this mono stringer sides by LVL and top...
  9. nomi640

    Mono Stringer Stairs deflection issue

    @Celt83 Yes these shipped in parts and I torqued each bolt @ 60F.Lb and I think its enough for these type of connection Bocani.com supplier did not specify torque values even I asked several time
  10. nomi640

    Mono Stringer Stairs deflection issue

    @mmarlow Yes this can be done to main floor staircase, but basement (without landing) don't have any wall beside it @John2025 you are correct these are not 6mm specially basement one (without landing/ 7inch stringer) @HotRod10 Yes all bolts are torqued @azcats I asked same question but Bocani...
  11. nomi640

    Mono Stringer Stairs deflection issue

    Hi All, Thanks for all the input and I appreciate your interest, I am in situation where I am not getting any help from the supplier/manufacturer so I need to rely on our engineering community here. Yes I need to fix the issue and rework always cost you money, so there is no choice I need to...
  12. nomi640

    Mono Stringer Stairs deflection issue

    So conclusion is I need to buy new stairs, there is no way to fix these stairs?
  13. nomi640

    Mono Stringer Stairs deflection issue

    Both mono strings are different, one is 15" wide other is 7", Any other option to stiffen the structure by bolting continuous tube (square, may be 3"x 3") on both side of the stringer?
  14. nomi640

    Mono Stringer Stairs deflection issue

    They were saying I need to have solid beam at top end and solid surface at bottom, I have both (added additional beam at top) bolted bottom in concrete all bolts are torqued to 60 lb/ft, They are in Montreal I am in Alberta, they told me they won't return it, I may need get them fixed my self...
  15. nomi640

    Mono Stringer Stairs deflection issue

    Supplier (Bocani) is not willing to help, the only response I got from them is their system is good issues are with my installation. But I added beam for top block and bottom is bolted to concrete floor. I won't get any deflection on top 2 or bottom 4 threads which translate that both top and...
  16. nomi640

    Mono Stringer Stairs deflection issue

    Hello, I bought modular two mono Stringer stairscase from bocani from Montreal, after installation staircase feel like suspension bridge, both stairs have side to side deflection and also jumping up and down. 48" wide thread have middle Stringer of 15" and 42" stairs consists of mono stringer...

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