ACT provide two options for the frames of this type Bleachers. One is steel and the other is aluminum frame. The seats and foots are extruded aluminum planks with anodized finish. They are designed to support 120 lb per linear foot.
These portable bleachers for school gyms are a great option for shared spaces. Simply roll them out when needed for use at basketball and volleyball games or during school assemblies. When the action wraps up, tip the bleachers back onto the swivel casters (optional) and roll them back to storage.
Three ROW ALL ALUMINUM bleacher seat NLP-4