My parents are getting their large, 2-tier deck re-done this spring/summer in Cedar most likely.
I did a search but couldn't find much other than recommendations to build it themselves, which they do not wish to do this time around. They are willing to pay more for guaranteed top-notch work.
The top deck is roughly 15X15', and the bottom probably somewhere around 25X20'
This is the best picture I have on-hand of the deck and it's not great....there is the raised top section up against the back door with a high railing, and then stairs between the railings leading down to the larger lower section that you can only see part of, with built in benches and flower beds.
Any contractor recommendations would be appreciated. Feel free to post them here or PM me.