A temporary or semi-permanent shelter structure may include a modular floor and a modular shelter, each comprising pieces which together may be sized to fit within a standard shipping container for ease of transport. In some embodiments, at least two walls of the modular shelter may be attached to a center structure of the modular floor when placed within the standard shipping container. In some embodiments, lateral rails extending from the center structure can enable construction of the modular floor to be larger than the square footage of the shipping container floor through placement of additional flooring pieces on the lateral rails. In some embodiments, the shelter structure may have a footprint that is the same as the size of the modular floor. In some embodiments, the modular shelter includes a roof whose pieces fit along with the other pieces within the standard shipping container.

The invention relates to vehicle-transportable expandable structures. The structure comprises a stationary module, slide-out modules, expansion mechanisms and support mechanisms for the slide-out modules, a power supply system, a frame, a control unit. The expansion mechanisms are mounted below and represent tube in a tube systems having rollers and motors synchronized between each other. Each support mechanism is formed by at least three profile elements, comprises its own motor, two sets of rollers and vertical masts with reinforcing ropes. The support mechanisms are mounted above and attached to roofs of the stationary module and the slide-out modules. The expansion mechanisms' motors are synchronized between each other and with support mechanisms' motors. The invention achieves: stable, uniform, smooth, mechanized and automated, simultaneous sliding out/retraction of several slide-out modules outwardly from the stationary module; stable and long-term support of the slid-out slide-out modules above and below; increasing a useful living area.

An expandable home structure can expand outward from at least one side thereof to expand the living space once the home is delivered to a desired location. The expansion process includes raising two roof panels from a side edge of its main structure, where the roof panels follow a track so that an outer one of the two roof panels can, once fully raised, slide outward along front and rear walls of the expansion section so that the roof panels form a box gable roof structure over the expansion section.