I made two floor pens out of mine plus four grids block the bottom of the stairs, six block the electrical wires in the living room and eight cover the gaps in the units in the kitchen. They are cable tied together in lengths and opened out in a sort of concertina so they stay standing up even if knocked by running piggies at floor time. Because they are in lengths they fold up small and go away in a cupboard easily. I join the ends of the runs with bull dog clips, these are also going to be useful when I take two of the piggies on holiday with me.