Clear Anodized Aluminum Plank Powdercoated Steel Support Structure Non-marking Transport Casters 3 Tier Single Footplank 9' Long Seating Capacity: 18 Approx. Shipping Weight: 272 lbs. Lifetime Limited Warranty Units roll easily on non-marking casters Strong powdercoated steel understructure Mill finish footplanks Single and double footplanks available Upper seat level is below 30" First Team Tip-N-Roll bleachers meet guidelines set by 2002 IBC recommendations for bleachers. Check with your building inspector for local and state code requirements.