there is a residential building
L = 20' B = 30' H = 20' 
stairs L = 3' H = 20'
calculate the numbers of Threads and risers from stairs with formula

Answer Posted / pavar

Riser= H/6" -(6")=20'/6"-(6")=39 Risers.
Threads=l/10"=40 threads.

Is This Answer Correct ?    2 Yes 5 No



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