Thread: cat netting

I have a tall stair gate which I would like to put up in the room I'm intending to put kitty in for the first day or so to stop the dogs getting in and kitty getting out but enable them to smell and see each other through the bars. The bars on the stair gate are 6cm apart. Would a kitten be able to get through that? If so is there anywhere I could buy a small piece of cat netting that I could put over the gate?