I was looking at rules for a double-elimination tournament but it seems that I growned up where double-elimination tournaments are totally different from the rest of the planet.
The double-elimination that I know and used for most ice hockey tournament, is where any teams in the first round can lost his game, and that game will only help to decide on which side of the bracket you will go. Each games in second round opposite a winner vs a loser team. The loser in second round is eliminated (even if he has winned in first round).
The bracket for that kind of tournament is a list in the center of the page with branches on each sides.
I've discovered that it is called in French «fausse (false) double-élimination». I wonder if there an existing name in English for that kind of tournament.