A. (By @MrDaniels ) Your tie width should be in proportion to the lapels on your jacket. If you have a big chest, the lapels should be on the wider side to be in proportion to your frame. Also, what kind of shirt collar will you be using....will there be a spread collar? If so a wider/ thicker tie may fill it better. Length should not be an issue at 5'8".
Have a question about weddings? Submit it here!