As with lots of other roll wire the spacing isn't exact - so if you are building a cage with clips you'll want to measure and cut accordingly. You can get around that by bending the wire to create 4 sides, then cut tops and bottoms 1 inch longer and overlap the cut sides a bit. It makes for a stronger cage anyway. If you are raising rabbits outside then I would suggest you use the 1/2 inch by 1 inch wire because rats can squeeze through the 1 inch by 1 inch wire to steal the food. It is a lot cheaper than the 1/2 inch wire though...

I used this type of wire to go in bottom of mobile chicken coops so they can be moved around to fertilize the pasture with minimum coop cleanout. This wire is not consistently 1"x1". Some of the wire curves back and forth making some of the holes smaller than 1' x 1' causing manure to build up. If you are using this wire for this type of application, I suggest getting a better brand. If that doesn't matter to you, the wire is quite strong and does make a good heavy screen for openings.