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.
(c)(9) Handrails shall provide an adequate handhold for employees grasping them to avoid falling. (c)(11) Handrails that will not be a permanent part of the structure being built shall have a minimum clearance of 3 inches (8 cm] between the handrail and walls.OSHA Stairway and Handrail Regulations Page 5 of 6 edge.