Size It Up: If possible, ask everyone in your bridal party to get measured by a professional seamstress or tailor at a department store if they can't make it to the store where you're ordering the dresses. Warn them that bridesmaid dresses sizes are not the same as traditional clothing ones, so chances are their usual size won't apply (read: they'll go up a size or two). Remember: It's always easier to take in a bigger dress than it is to let out a gown that's too small.
Give Yourself Time: As well as giving yourself time to find the bridesmaid dresses, delivery and alterations also need to factor into this time_scale. There is no way of predicting things getting lost in the post, not fitting or needing slight alterations so leaving a few months breathing space is always a good idea.
by Allen G. Damiano on Aug 10, 2018 Bridesmaids