Is a dance floor necessary for a backyard 40 person wedding reception? The bride wants to have the father daughter dance but I just don't think there will be enough people to have people really dancing on a dance floor. The bride was worried about people's heels digging into the ground, but the guests are going to know it is going to be a more causal affair in our backyard and I hope they would have enough sense to dress appropriately. Even if we get a dance floor the guests with heels are going to have to tip toe every place else.