Horizontal projections of the Handrail Brackets shall be 1 1/2 inches below the bottom of the gripping surface. The underside of the gripping surface should not be blocked for more than 20 percent of its overall length. This surface needs to be continuous along the length and not obstructed at its tops or sides, including the landings and corners. The Handrail gripping surface is the actual Handrail you grip while using the Handrail. Handrails have specific parameters they must meet to comply with ADA standards. The minimum vertical clearance between Handrails is 9".The maximum height from the surface is 28".Sufficient vertical clearance between upper and lower Handrails, 9 inches minimum, should be provided to help prevent entrapment. When children are the principal users in a building or facility (e.g., elementary schools), a second set of Handrails at an appropriate height can assist them and aid in preventing accidents.Ī maximum height of 28 inches measured to the top of the gripping surface from the ramp surface or stair nosing is recommended for Handrails designed for children. The height of top rails, or equivalent guardrail system members, is 42 inches, +/- 3 inches, and may not exceed 45 inches above the walking-working surface. OSHA requires the top of the gripping surfaces of Handrails shall be 30 inches minimum and 38 inches maximum vertically above walking surfaces, stair nosings, and ramp surfaces. What is the International Code Council (ICC)? 4. The IRC required the top of all Handrails must be between 34 and 38 inches measured from the walking surface or the nose of the stairs. If the guard top rail is not used as a Handrail, it would not have graspability requirements. When the 42-inch guardrail is used on a stair or ramp, a secondary Handrail will be required at the appropriate height. The IBC requires a guard to be 42 inches tall, with Handrails falling between 34 and 38 inches.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |