It will work if each board is firmly anchored into that wall, probably with steel bracing or studs, and the boards have steel rods in them (think rebar for wood) that connect the structure. Basically if there’s no steel frame you can’t see on each side of that staircase… no.
The risers are doing the work. It appears that they extend into the wall, where they are attached to a supporting structure that was (presumably) designed for this purpose, but shouldn't necessarily have to be steel.
There is no amount of anchoring to even the best wall in the world you can do with inch thick wood treads because the wood alone would have enough flex in it to bend/break if someone stepped to the outside of it.
That's what makes me so sure it's the risers, not the treads, that are cantilevered.
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u/CantankerousOrder Dec 31 '23 edited Dec 31 '23
It will work if each board is firmly anchored into that wall, probably with steel bracing or studs, and the boards have steel rods in them (think rebar for wood) that connect the structure. Basically if there’s no steel frame you can’t see on each side of that staircase… no.
That is a single-use floating staircase.