Tip: ask the shelter on a "foundation" (not on the floor) The instructions, in English, provides 2-3 hours to 2 people for assembly: rather provide more than three times as "adjustments" its necessary. As regards the base: only the structure is provided (no element to be laid above) so it is necessary to add a ground (we put boards). Details that can be important: the door is located on the width and it is not 'sealed' to rain (we stuck a rubber band to avoid the rain falls through the gap between the 2 wings) . Once all previous steps, this shelter is convenient for storage (the sliding doors is a plus)