IRS Rink Perimeter Boards and Hockey Dasher Boards are pre-manufactured in 8'(2.5m) sections. They are construced of the heaviest-duty aluminum "custom extructed" tabular frame, with a wall thickness of 0.19"(4.75mm), the thickest frame walls in the rink industry! The Board Frame are clad with 1/2"(12.7mm) white polyethylene, with your choice fo colors for the kickplate and the rail. The boards are available with or without spectator shielding (Tempered glass, cap and plexiglass).