you can check the thickness of the flooring the subfloor material and its thickness by referring to building…

you can check the thickness of the flooring the subfloor material and its thickness by referring to building plans; lifting out a supply air register; asking the owner; measuring the overall floor thickness and subtracting the joists; drilling a small pilot hole in an inconspicuous spot. question 34 handrails on open stairs should typically be 20 to 24 inches high; 22 to 26 inches high; 30 to 36 inches high; 34 to 38 inches high; 38 to 42 inches high

you can check the thickness of the flooring the subfloor material and its thickness by referring to building plans; lifting out a supply air register; asking the owner; measuring the overall floor thickness and subtracting the joists; drilling a small pilot hole in an inconspicuous spot. question 34 handrails on open stairs should typically be 20 to 24 inches high; 22 to 26 inches high; 30 to 36 inches high; 34 to 38 inches high; 38 to 42 inches high

Answer

Answer:

First question: drilling a small pilot hole in an inconspicuous spot Second question: 34 to 38 inches high