In indoor arenas, the activity area may vary from the size of a boxing ring to a football pitch.
In outdoor sports, field sizes may vary between American football and soccer requirements, or baseball fields.
Movable seating arrangements have been created to fill this need.
Mobile bleachers provide a lower-cost method of providing such seating with minimal site preparation requirements.
In the United States, mobile bleachers are required to meet the same safety standards as fixed, telescopic and temporary bleachers in accordance with CPSC Publication 330.