It is important to know the swing of a door, the hardware being used can be directly impacted. With your back against the hinge side of the opening, pretend your arms are the door – left arm moves it is left hand, Right arm moves it is right hand.
Now to complicate the matter: Handing if based on standing on the outside of the opening. If you pull toward you it becomes a reverse door. So that left hand door swinging out now becomes a right hand reverse and the right hand door swinging out becomes a left hand reverse door.
Look over the images when making a selection to make sure it is what you need.