Hi Janet
I am looking for the same.I want a cat run attached to my house.Have done alot of research on the subject,and think I have come up with a guy in Staffordshire,who will make what i need.He is a skilled welder.
I am meeting up with him on the 4/5th August--and if you like I can tell you what his work is like.Hes going to show me the one hes built for his 3 cats,but mine will have to be alot bigger to accomodate 7 cats.