Wedding seating plan tips
Start from the people who must sit together: parents, the wedding party, and anyone who travelled as a household. Give them a table before you try to solve the whole room. A seating plan that begins with the awkward cousins usually gets rewritten.
Use the replies you already have. Someone who declined does not need a chair. Someone who has not answered yet can stay on a waiting list instead of blocking a seat you may need. Update the plan when the reply changes, not the night before.
Tables of eight to ten are easier to host than a long banquet if your families do not all know each other. Put a host who can make introductions at tables of friends-of-friends. Keep young children with the adults who came with them.
A list of names is the seating plan most couples need. A floor drawing, with the stage and the dance floor, helps when the room is unusual or when the DJ needs to know where not to put a speaker. Draw that after the names are settled. Export a copy for the venue so the staff are not working from a screenshot in a group chat.