An adjustable bathroom handrail assembly is provided with a pair of elongate vertical handles with mounting hardware to mount to an upright support surface and spaced apart from the upright support surface. An adjustable horizontal bar extends between the pair of vertical handles, and a locking mechanism connects the at least one adjustable horizontal bar and one of the pair of elongate vertical handles. A locking mechanism is located at an intersection of the horizontal bar and the one of the elongate vertical handles. A method for installing and adjusting wall-mount hardware installs a pair of elongate vertical handles to an upright support surface. The ends of a horizontal bar are installed onto the pair of elongate vertical handles. A locking mechanism on the horizontal bar is disengaged to adjust the horizontal bar to a location along the pair of elongate vertical handles.