"I can't remember the right term, dias is not correct."
Answering as I read, in case no one has answered...I think you meant dais, but the other word you're looking for is catafalque. It's the same catafalque used for Lincoln.
catafalque
Yes, that was the word I was previously unfamiliar with.
And I did mis-spell dais as well.
Thanks for the correction.