Abstract: A cyclorama utilizing floor and ceiling coves of concavo-convex shape having side flanges receiving fasteners for assembly of the coves along a studio floor and ceiling. Recessed side marginal areas of the coves receive cementious material to provide an uninterrupted surface which conceals the joint area between abutting coves. The floor cove includes a lower edge of increased thickness to accommodate a fillet. Floor and ceiling corner coves are each curved along two axes for installation at the intersection of cyclorama wall components. The corner coves include converging side flanges for attachment to the side flanges of the floor and ceiling coves.