What size garage/garage door?

I have a 2005 Malibu Wakesetter VLX that I keep in dry stack. We will be building a new house in the next few years and want to design a garage big enough for the boat to fit. I do not have a trailer yet, so I have no way to actually measure the boat to see how wide/tall/deep I need the garage to be. So, if any of you also have a 21.5' Malibu with the illusion X tower and you garage it (without lowering the tower or taking off the ski platform), how deep is your garage and what size garage door works?