I am having my reception in a small barn and it will fit about 150 people. There will be different things outside too, like a photo booth, benches, and other lawn games. I am just having desserts and summery drinks (lemonades and teas), not a sit down dinner. I have talked to several people who have said that it will be fine not to have a chair for every behind, especially since the barn won't hold that many. However, everyone on here seems to think that it is rude not to. I will have some seating, some taller tables, and seating outside. I do not want to do something just because of etiquette. Is it completely awful not to have seating for everyone? If you were going to the wedding of a close friend or family member, would you really hold it against them or remember if they didn't have a chair for every person? There will be seating for at least 50%.