sodakat
Rollerblading along the road
Go to a lumber yard and see if they can order rolls of wire for you. That's where I bought mine. The rolls are 100' long and 30" to 36" high depending on guage. Be sure to buy GAW (galvanized after weld) wire. If you are going to build the aviary this year you will want to get a tub and mix vinegar with water deep enough to soak the roll(s) of wire, then brush them off with a wire brush afterwards. Once the wire is up on the aviary structure it will begin to weather which is good. Each year check it for loose particles and brush them off. My birds don't really care to hang on the wire much at all. They may fly to it and climb up to a perch but rarely. They are more interested in flying and sitting on the perches/ropes/etc. than having their beaks on the wire.I am glad you started this thread as well. As I mentioned before, we are looking to build an Aviary this spring. We have been looking for ideas as well. So far our biggest obstacle so far is, what is safe wire? We have been looking around trying to get an idea as to what is available in our area and it seems slim pickings at this point. What has everyone else used? We are wanting wire, not netting, though the birds would only be outside when we are. The big thing is that it cant be permanent. We do not own this house.
I've seen ideas for aviaries built around those metal portable car/boat storage frames online. Lara Joseph has a simple idea for an aviary on her website too but right now the design escapes me. However, she does have her entire yard enclosed in netting so her aviary doesn't need to be as secure due to the exterior barrier.