you need to state what kind of cage>>>>>>table top >>full flight>>big bird>>small bird>>all this information is needed to determine wire or rod spacing and dia.guage of wires or rods.
But from my experience in buliding a couple of cages, unless all you want is something to house the bird or other animal , and not particularly interested in the looks you are better off to buy a good cage. I built a 3x3x6 foot cage for my greys and it cost me over a hundred and still does not look very attractive, but is a excellent cage, which I never used except for a place for them to roost at night and my cockateils use it more than the greys do.
