You are not the first to ask this question! Most lever handles (depending on the design) require handing to be specified when ordering. Door handing needs to be indicated because lever handles often have a scroll type design or an arched style; as a result if the handle is installed on the wrong handing the end will point in the wrong direction. For example, if a lever handle curves downward on a right hand door, when installed on a left swinging door the handle will curve up and look wrong. Be sure to read the exceptions before ordering so you don't get the wrong door hardware.