The Americans with Disabilities Act (ADA) of 1990 establishes accessibility standards. Section 4.16.4 addresses Grab Bars, and provides Figure 29 which answers your question. Please note that the Americans with Disabilities Act only applies to public buildings. Private residential homes are excluded from being required to follow ADA guidelines. The ADA guidelines are good places to start but the ultimate placement of a grab bar in your home is at the discretion of the user.
For more information, see Related Links, below.
Here is a good link http://www.huduser.org/Publications/pdf/fairhousing/fairch6.pdf. This will take you to the Fair Housing Act Design Manual chapter 6 for bathroom blocking and grab bar locations. Here is the link to ADAAG http://www.access-board.gov/ada-aba/final.pdf ALWAYS check with your local building department for the proper approval of this information. Terry
In a horizontal application, 34" to the center of the pipes.
34 inches to the center of the bar.
The standard height of a push bar is 2.5 to 3 feet. This allows the bar to make contact with most vehicles directly on their bumper.
Balcony Height is in between bar height and standard seating height, approximately 20" to 22" high. Standard height chairs have seats that are usually between 17" and 19" high, and bar stools are normally 24" to 26" high.
Standard bar stools are 30 inches and smaller counter stools are usually 24 inches. They make bar stools in different sizes but those are the standards.
If you are using a grab bar designed for ADA use it can be mounted directly to the wall, 34" to the center of the flanges.
below the grab bar
usually it will be placed according to request because many elderly or handicapped have different situations. the grab bar can be placed horizontally, diagonally, or vertically-- and the height can start from about 28 inches off the floor or higher for taller persons. ADA Horz bars are 34 to 36" to the centerline of the bar. If you are mounting in an ADA location you have to get it right. The commode and bars have to go where they have to go. Do your research.
Most common height 30".
Standard bar height is 42 inches. Standard counter for a breakfast bar is 36 inches. Typically you want about 12 inches of clearance for your legs. Standard bar stool height is therefore 30 inches and standard counter stool height is 24 inches.
15" from floor to rim of bowl on a standard water closet and 18" on a handicap water closest. That means on the 15" standard -you need to be 15" from center of bowl to any side walls. (30" space if enclosed) On a handicap water closet-18" from center of bowl to wall with grab bar. And (36" space if enclosed) grab bar on both sides.
The standard ADA height for most grab bars is between 33 to 36 inches off the floor.
There's no single standard, but the most common heights for bar stools are 30 inches and 24 inches (seat height).