I have three WH ducks and am getting four more ducklings in early March. My ducks do not free range. When the new ducklings get large enough to introduce to the current ducks, I know I will need more sleeping space and yard space for a total of seven ducks. So, am adding another 10x40 ft enclosure in early spring just for the ducks. My current ducks are locked up each night under a raised coop with three sides covered, so they are used to being protected from the weather and have lots of straw for bedding. Am planning on building them a new house in the new enclosure. Am thinking of a wood house, a slanted roof I can raise to clean out the house and gather eggs, with a locking door on each side of the front of the house for them to access. Would 7ft long x 2 1/2 ft deep be large enough????? I just want to make sure all seven ducks have plenty of room to manuver a space to sleep in. I would really, really apreciate any thoughts or suggestions!!!!!!! Thanks in advance.