Hi yes the red quarry tiles are the octagon ones 10.5x10.5 with small 053x053 buff on black squares set on corners if that makes sense have a couple of places just wondered if any tilers on here knew a good place to get them from the places I've looked are shops in central London so rather steep if u ask me.
I have a kind of drawing which I'll try to upload later so u have a better idea. Thanks for the reply by the way.