There's two equally effective ways on deciding what size boat to buy / make.
1.) Carefully measure up the room in your car, the room available in your house to store it, and any passageways (including bend in doors etc) it needs to go through while going though the house. Then deduct a small amount of size to allow for the model to go easily into these spaces.
2.) Do it the way most people, including myself do. Buy the biggest one there is available, then work out where you're gonna put it when it arrives

Andy
