Due to its large size, the Flemish Giant needs substantial living quarters that provide ample opportunity for physical movement. The House Rabbit Society recommends keeping rabbits inside the home in a very large pen or room(s) in the home. Larger dog crates are often more appropriate than traditional rabbit and small-pet cages, which tend to be smaller and shorter. In the United States Department of Agriculture's standards for animal housing, rabbits over must have at least of floor space. The size of appropriate living quarters increases with size of the rabbit.