Towel rails get chosen almost entirely on appearance, then installed at whatever height happens to be convenient, which is backwards.
The Reach Problem
A rail placed too far from the shower or bath means dripping across the floor to reach it, a small daily friction that no amount of good design fixes. The Hand Towel Rail is compact enough to mount within arm's reach of most shower exits without dominating the wall.
The Height Question
Too high, and shorter household members struggle. Too low, and towels drag or bunch. A rail at roughly shoulder height for the primary user tends to work for the widest range of people without adjustment.
The Honest Verdict
Before you mount anything, stand where you'll actually be dripping wet and reach naturally, wherever your hand lands is the right spot, not wherever looks most balanced on the wall from across the room.
