Granite Industries Signature Series Bleacher Understructures
The Signature Series Steel Bleacher Understructures offer unbeatable value and performance. Engineered, manufactured and assembled in the USA, the Signature steel supports are built to last. This particular understructure is made for 5 rows of bleachers. Granite steel supports are made from A500 steel. This steel is known for it’s strength characteristics.
The black powdercoat finish offers unmatched finish and expected life. These steel frames offer plenty of versatility as you can add your own seatboard or footboard. Also included are galvanized steel X-braces. These braces are built for ease of use and rigidity.
Includes:
- Black Powder Coated Steel Frames
- Galvanized Steel X-braces
- Hardware Kit
Specs:
- Approximate Support Dimensions:
- 3 Row Models: 3" W x 4'8" D x 2'6" H
- 4 Row Models: 3" W x 6'7" D x 2'6" H
- 5 Row Models: 3" W x 9'4" D x 7'7" H
- Additional OSHA requirements: Guardrails must be used on heights over 30"
- 5 year limited warranty
3 Row, 6' Long (90304) - This option includes two (2) steel frames and two (2) X-braces. These frames are designed to be placed 6' apart. The recommended seatboard length is 9' for this option. Seats 18 people when properly equipped. Package weighs 62 lbs.
3 Row, 12' Long (90305) - This option includes three (3) steel frames and four (4) X-braces. These frames are designed to be placed 6′ apart. The recommended seatboard length is 15' for this option. Seats 30 people when properly equipped. Package weighs 102 lbs.
3 Row, 18' Long (90306) - This option includes four (4) steel frames and six (6) X-braces. These frames are designed to be placed 6′' apart. The recommended seatboard length is 21′' for this option. Seats 30 people when properly equipped. Package weighs 142 lbs.
4 Row, 6' Long (90309) - This option includes two (2) steel frames and two (2) X-braces. These frames are designed to be placed 6' apart. The recommended seatboard length is 9' for this option. Seats 24 people when properly equipped. Package weighs 94 lbs.
4 Row, 12' Long (90310) - This option includes three (3) steel frames and four (4) X-braces. These frames are designed to be placed 6' apart. The recommended seatboard length is 15' for this option. Seats 40 people when properly equipped. Package weighs 118 lbs.
4 Row, 18' Long (90311) - This option includes four (4) steel frames and six (6) X-braces. These frames are designed to be placed 6' apart. The recommended seatboard length is 21' for this option. Seats 56 people when properly equipped. Package weights 206 lbs.
5 Row, 6' Long (90237)Â - This option includes two (2) steel frames and two (2) X-braces. These frames are designed to be placed 6' apart. The recommended seatboard length is 9' for this option. Seats 30 people when properly equipped. Package weighs 114 lbs.
5 Row, 12' Long (90238)Â - This option includes three (3) steel frames and four (4) X-braces. These frames are designed to be placed 6' apart. The recommended seatboard length is 15' for this option. Seats 50 people when properly equipped. Package weighs 206 lbs.
5 Row, 18' Long (90239)Â - This option includes four (4) steel frames and six (6) X-braces. These frames are designed to be placed 6' apart. The recommended seatboard length is 21' for this option. Seats 65 people when properly equipped. Package weights 240 lbs.