General rule of thumb is 1 inch in difference between men's and women's length. That is also dependent on the head style. In men's clubs take TaylorMade. The P790 standard length 5 iron is 38 inches and the QI is 38.5. Club manufactures make game cast game improvement irons usually 1/2 inch longer. Mizuno is a 1/4 longer. It varies from model to model.
Going men's standard for the short term is too long, too heavy with grips that are too big. The ideal set I have is a Tour Edge Hot Launch C524 ladies set. They are 1 inch short and have a 52 gram graphite shaft with a ladies size grip. The good thing about them is they don't look like a ladies club. Tour Edge is out of Chicago and has a limited lifetime warranty on their clubs. This set I 5-PW, SW for $428 down from $559.
I also have a Tour Edge C522 iron 4-PW men's reg flex steel for $250. If you need a complete set with a bag I do have one offering from Head for $280 and it isn't pink, purple etc.
