Abstract: According to one embodiment of the invention, a customizable saferoom includes a ceiling panel, a first wall panel having a first set of dimensions, a second wall panel having a second set of dimensions, a third wall panel having a third set of dimensions, and a fourth wall panel having a fourth set of dimensions. Each of the ceiling panel and the first, second, third, and fourth wall panels are coupled to at least one other of the ceiling panel, the first, second, third, and fourth wall panels to form an enclosed structure. The first, second, third, and fourth sets of dimensions are selected to optimize the volumetric capacity of the enclosed structure within the confines of a pre-existing space within a building.