Generally grab bars should be installed at whatever height is most appropriate for their primary user.
Ada vertical grab bar height for showers.
Vertical bars are helpful and provide support when stepping into bathtubs or showers.
A vertical grab bar 18 455 mm minimum in length mounted along the side wall.
The bottom of a vertical bar in transfer showers must be 3 6 inches over the horizontal bar on the wall.
The grab bar s shall be mounted 33 36 inches 840 915 mm above the shower floor measured at the entry.
Figure 608 3 3 grab bars for alternate roll in type showers.
Center line of the bar located 39 990 mm minimum and 41 1040 mm maximum from the rear wall.
This is a good starting range.
Vertical grab bar requirements.
Bottom of the bar located 39 990 mm minimum and 41 1040 mm maximum above the floor.
Each grab bar shall be 24 inches 610 mm long minimum and shall be installed 24 inches 610 mm maximum from the head end wall and 12 inches 305 mm maximum from the control end wall.
The icc a117 1 standard which is referenced by the international building code requires an 18 minimum vertical grab bar at transfer showers and bathtubs.
The controls and spray unit shall be within 18 inches 455 mm of the front of the shower.
Clearance above the grab bar.
Grab bars shall be installed 6 inches 150 mm maximum from adjacent walls.
Grab bars shall not be provided above the seat.
Each grab bar shall be installed 15 inches 380 mm maximum from the head end wall and 12 inches 305 mm maximum from the control end wall.
The controls shall be placed in an area between 38 48 inches 965 1220 mm above the floor.
The ada standards do not require a vertical grab bar at bathing fixtures.
A folding or non folding seat shall be provided in transfer type shower compartments.
Two grab bars shall be installed on the back wall one located in accordance with 609 4 and the other located 8 inches 205 mm minimum and 10 inches 255 mm maximum above the rim of the bathtub.
However ada standards recommend that rear grab bars be installed at the height of between 33 and 36 inches above the finished floor of the tub shower or bathroom.
If the grab bar is 36 high a non recessed toilet paper dispenser located above the bar must have an outlet at exactly 48 high to accommodate both the max.