Vive FAQ: What is the recommended space for the play area?
Movement within a diagonal area of up to 5 m (16 ft 4 in) is supported. For example, a 3.5 m x 3.5 m (around 11 ft 5 in x 11 ft 5 in) space. For room-scale setup, a minimumplay area of 2 m x 1.5 m (6 ft 6 in x 5 ft) is required. There's no minimum for seated and standing experiences.