Dock houses are economical insulation solutions that contribute to energy saving and improve the working environment. These solutions combine all the components required for the loading unit: loading ramp, bellows and door. A complete and independent ramp loading system is created, together with the bottom platform and insulated or uninsulated enclosure. The loading chamber allows the actual loading and unloading area to move outside the building, releasing the interior floor area. To a large extent, the building does not require renovation. The loading chamber can be used in temperature controlled applications to ensure thermal separation between the building and the loading area.