seems like mspaint diagram is required.
that said, you could try putting it on it's side so that it'll clear whatever is blocking it on the other side of the door
is there no other door into his house?
Intel Core i7 920 || Asus P6T Deluxe V2 || Noctua NH-U12P|| 12GB DDR3-1600
GTX 670 || Intel x-25m 80gb || 1TB Caviar Black || Antec 902 ||Antec 550w