We are planning on putting in some concrete Panels to create walls to a couple of rooms off a rotary parlour. We are proposing to use 95ml panels and we need a finished height of 1.5 metres. Could we get 2m deep panels and set them in 0.5m concrete so they would be self supporting rather than have channels at either end? They are not support anything. How deep a panel can you get? Is this a daft idea?