Where to position a grab bar near toilet?

A grab bar should be positioned near the toilet at a height of 33 to 36 inches from the floor, which is generally shoulder height for most adults. It should be placed on the wall adjacent to the toilet, ideally 12 to 18 inches away from the toilet bowl, allowing for a secure grip while sitting down or standing up. Additionally, ensure that the bar is installed securely to support the user's weight.