Here is a plan of the roundhouse at barrow Hill, showing the turntable and tracks inside and outside the depot.
By Gosh Alan, it is a square roundhouse. With the different lengths of spur tracks inside, you could house anything from an 0-4-0 to a 4-8-8-4, eh?
Not quite an articulated, Fitz! The table is only 56ft or so long! Will take a 4-6-0 or 2-8-0, the largest that were usually housed there