âI think whatâs changed a bit over the years is â over time, the concentration of the active ingredient, THC, has increased dramatically in the marijuana that is available for people to smoke,â Ball said in a video.
Exterior residential entrance steps are usually about 7 inches high, so a porch with more than 2 steps would be about 21 inches high. Most building codes require a 36 inch high guard (railing) if the change in level is 30 inches or more.
Bottom Line. Install stair handrails at the height suggested by national and state building codes, which is 30 to 34 inches. If no codes regulate stair handrail height in your area, you have the freedom to install the rails at a different height, but as suggested, 36 to 40 inches is the best for preventing falls.uilding Codes. National and state building codes suggest a handrail height of 30 to 34 inches, which is 2 to 6 inches shorter than the suggested height for safety. If you are installing stairs, however, you must obey building codes and set the handrail height accordingly.