Yes, its just angled at the edges.
Its part of my garden Dawn. Thats actually at the front of the house where I have another bit of garden set back from the drive and off the back door. Its part of the garden I cat proofed when I first moved here. The cats are free to go in the rest of the garden round the other side of the house now, but I kept this bit cat proofed because I can close it off from the rest of the garden at night time - so they can still go out, but not wander out of the graden.