The minimum width of the handrail above the recess shall be 1¼ inches (32 mm) to a maximum of 2¾ inches (70 mm). This required depth shall continue for at least 3/8 inch (10mm) to a level that is not less than 1¾ inches (45 mm) below the tallest portion of the profile. The finger recess shall begin within a distance of 3/4 inch (19 mm) measured vertically from the tallest portion of the profile and achieve a depth of at least 5/16 inch (8 mm) within 7/8 inch (22 mm) below the widest portion of the profile. Handrails with a perimeter greater than 6¼ inches (160 mm) shall provide a graspable finger recess area on both sides of the profile. The IRC and residential portion of the 2009 IBC define Type II handrail as follows: Type II. In addition, the International Residential Code (IRC) includes a definition of a "Type II" handrail that allows for handrail with a perimeter dimension greater than 6¼" (160 mm). Current versions of these codes and standards now agree that handrail is defined as either a circular cross section with an outside diameter of 1¼" (32 mm) minimum and 2" (51 mm) maximum or a non-circular cross section with a perimeter dimension of 4" (100 mm) minimum and 6¼" (160 mm) maximum and a cross section dimension of 2¼" (57 mm) maximum. Shawn This from wikipedia Various model codes-The International Code Council (ICC) and National Fire Protection Association (NFPA)- and accessibility standards-ANSI A117.1 and the Americans With Disabilities Act Accessibility Guidelines (ADAAG) - refer to handrail dimensions. Thanks for any info or muddy water clearing, Shawn Better to do it right and know what the heck you are doing before you start than to have to fix it after you think your all done. I just don't want to assume something and get out there and have the inspector say, "this dog ain't gonna hunt". I'm thinking that this means I can set my handrail 12 inches in from the edge of the sidewalk for my edge protection and still be within their guidelines? With the one side being back filled with dirt I can set it against the sidewalk edge and the other side(parking lot side) I can core drill and set it 12" off the edge to the inside of the sidewalk and I will meet the requirements? I think I need to talk to the head cheese again but he had nothing to offer up as far as ADA, kinda looked at me and said, "they have it on their website". Would the contractor have to extend the sidewalk in order to keep the sidewalk 60" between the rails? I see 405.5, clear width states "The clear width of a ramp run and, where handrails are provided, the clear width between handrails shall be 36 inches minimum". If it does not stay there(the dirt) and I have a 6" drop off I have to move the handrail in a minimum of 12", which means my 60" sidewalk is now 48". The sidewalk runs parallel to the driveway, they have some dirt there now but I'm not thinking it is going to stay there. If I'm reading this right if the dirt is up to the height of the sidewalk or a max of 1/2" below and extends out 12" minimum that will be good? On the other side I think there will be a problem though. I've considered doing post holes and setting the rail on the edge of the sidewalk but then I read section 405.9 for edge protection in the 2010 Standards: Titles II and III, page 127. If I mount the railing in the sidewalk concrete I'll have to core drill off the edge in order to not crack the new sidewalk that I don't want to replace, but if I do that then I take away from the total width of the sidewalk, 5 feet. The sidewalk will be backfilled on either side with dirt to the sidewalk height by the way. Now, ADA says the sidewalk has to be 5' wide, as it is. The only thing I am running into is mounting the railing. I've got everything laid out, getting prices and so on. I cannot have the extension on this one as it will interfere with the walkway so this breaks back as a corner. On the other side the sidewalk connects with another sidewalk that does a 90. On one side I need the extensions off the ends, 12" minimum. The length of the rail is gonna be 31 feet, times two. They have a new sidewalk, exactly 5 feet wide. This is a public building, gub'ment building. This is something that they just found out that they need after an inspection. Bidding a set of handrail on a ramp, has to meet ADA. Got some questions to run by anybody who knows.
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