We have a client who is questioning the practice of carrying the leaseline through the perimeter columns. As per the standard, no deductions shall be made for columns necessary to the building. However, the columns along the perimeter often 'grow' larger than the interior columns when the framing conceals building services, or, in this case, the columns are built out with granite on the exterior, making them larger. The interior projections of these columns is about 42"X14" when in reality, the actual column with the enclosure is much smaller. Should this be treated as a wall and the leaseline go araound it?