WE PURCHASED THIS ITEM AS AN OUTSIDE SHELTER FOR OUR EXOTIC BREEDER BIRDS. IT CAN BE STRAPPED DOWN SECURELY, BUT IS ALSO A NON-PERMANENT STRUCTURE BASED ON BUILDING CODES, ALLOWING US TO ERECT IT WITHOUT A PERMIT, MOVE IT AS NEEDED, AND STILL KEEP OUR BIRDS WELL PROTECTED, WHILE AT THE SAME TIME GETTING BETTER AIR FLOW THAN MANY PERMANENT BUILDINGS. AS WE LIVE IN FL, IT IS ALSO CONVENIENT TO TAKE DOWN QUICKLY IF NECESSARY FOIR HURRICANES.