phlegm..............No NHL venue has been built to accomodate the larger ice surface?
With the exceptopn of the Northlands Coliseum/Rexall Place all NHL rinks in Canada can switch between both IIHF and NHL sized ice surfaces. The 1988 Olympics in Calgary were played using the IIHF size. 2004 World Cup exhibition games in Toronto and Vancouver used the IIHF capabilities in both arenas.
The new Penguins arena will have the flexibility to use both international and IIHF sized ice surfaces.
Almost every NHL arena in the last 15 years has been built to be convertible in case that city hosts an IIHF sanctioned game or the NHL decides to make the change.
Mr.Peabody, the United Centre in Chicago can accomodate an IIHF arena if need be, the pipes for the ice are in place.
If I recall correctly, they would lose about 1300 seats in the process. The extra 15 feet comes from the side opposite the player's benches so the current players benches would remain where they are, but the penalty boxes would be moved. Like Calgary and the Bell Centre in Montreal, you can't tell where the change would happen, but there was a lot of talk after Salt Lake City about bigger rinks and I was assured that the United Ctr was fully IIHF capable if need be as per the instructions above.
Copps Coliseum in Hamilton is also convertible I believe.