Linda, I am trying to see in my minds eye what you have but I cant quite see what you are getting at.?? 1) Do you want to make the hole in the wall wider.? is the wall made from timber or brick or ??. 2) When you say "a very tight area" do you mean the space behind your machine( give inches +/-) 3) Let us know and we can go on from there. John 2000