3 Row 21' Bleacher Preferred Double Foot Plank Back-To-Back BTDP-321 The Jaypro Sports 3 Row Back-to-Back Bleacher (BTDP-321) is a compact, durable seating solution that balances capacity with space efficiency .Double Foot Plank: Ensures added stability and safety for spectators. Back-to-back configuration allows for seating on both sides, optimizing space usage. Place between adjoining fields or indoor courts for spectator viewing from both sides of the bleacher. The Back-to-back bleacher is ideal for environments where maximizing seating in a limited space is essential, such as schools, parks, or community sports facilities. 3 row configuration 21 foot long benches 72 seat capacity 2 plank (20 in. wide) foot path 10 in. wide aluminum non-skid seat planks Double plank at the top allows for maximum seating on boath sides of bleacher. Sturdy Aluminum under structure Important Information Indoor conversion kit (BLCHICK34) for indoor use sold separately