Approximate Design Dead Load of Stairs

[astructurale]

I need to know a good estimate on the weight (psf) of Steel Bar Grate Stair Treads & Stair Stringers. I have a stair imposing loading on a slab. I need to check the slab for the laods, but I don't know what the dead loads are for stairs of this type. I just need a safe ballpark assumption.

 

[civilperson]

Try C10x15.3 stringers with 15#/ft for handrails and 9.4 psf for bar grates.