The arena was unique in North America in that the hockey dasher boards were made of clear acrylic glass from the shelf all the way down to the ice. This was because the arena's seating configuration was round, and the closest seats between the blue lines were not flush against the boards.
Previously not an issue when dasher board advertising was rare, the clear boards made for better sightlines for most spectators seated between the blue lines, since the seating angles in the Civic Center were shallow. When the Minnesota Moose of the International Hockey League played their two seasons, they were replaced with standard white opaque boards to allow advertising. The new boards were disadvantageous to the previous seating arrangements, and with the Moose's quick departure to Winnipeg, showed the arena was outdated for the state's most popular sport only 21 years after opening, much less National Hockey League standards.
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