Large Roomscale alternative for Oculus

Hello everyone! I am currently trying to develop a game where 4 people can enter 1 large room and play together in 1 lobby. The room is a set dimension because this game will only be “playable” at a certain location. With it being a large play area Im not sure how to get a big enough boundary for the game. Sorry for the poor explanation, feel free to ask me questions before answering if needed

one thing to compare what I am doing is the OC5 Dead and Buried Arena 3 years ago.