Abstract: A replaceable corner molding for a corner formed by two walls each having a planar surface meeting the other perpendicularly, has a base member consisting of an elongated strip affixed to the meeting walls. The base member is of L-shaped cross-section and has a projecting strip extending from the inside surfaces of its legs at their area of intersection and equiangularly spaced from the inner surface. A head strip of circular cross-section is provided at the free end of the projecting strip farthest from the base member. A molding member consists of an elongated strip of L-shaped cross-section having a slot of circular cross-section extending along its length at the area of intersection of its legs, equiangularly spaced from the outer surfaces of the legs for accommodating the head strip of the projecting strip of the base member. The slot has a narrow neck part for releasably securing the head strip in the slot.