A solid foundation is key to a balanced and powerful swing. If you are too narrow, balance will be jeopardized. If you are too wide, you will restrict your movement throughout your swing.
DRIVER
The shaft is the longest, so it makes sense that your stance should be widest with this club.
IRONS
The stance becomes narrower as the clubs become shorter.
WEDGES
The stance becomes even narrower as shorter irons require less rotation, such as wedge shots, chips, and pitching.
Consistency begins with a consistent set up. Practice in front of a mirror at home to ensure you visually ingrain the proper set up!