This is awful to put together!!  Not all pieces were labeled.  It literally took an entire weekend to build. We took the time to build a level frame to build this on even and used the anchor straps as well. We haven't even gotten a full season out of it and the hinges on the ceiling vents don't stay open or latched.  Two of the L brackets inside that hold the supports up have snapped at the welds. Parts of the metal frame on the outside keep popping off.  We had to super glue the latches to the knobs because they kept falling off.  Doors don't fully close and can't get them to line up properly.