How to Figure Out How Many Hotel Rooms to Book – https://topweddingday.com/how-many-rooms-block-wedding/
Take the # of people who are traveling to your wedding from more than an hour away. Assume they’ll stay the night.
Divide this number by two, since some will share a hotel room.
Add 3 extra rooms just in case
40 people – divided by 2 – equals 20 rooms – plus 3 – equals 23 rooms should be reserved for your wedding guests.
Be sure to reserve your hotel room block 6-9 months before your wedding for the best chance of accommodations.
