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Hardboard 2.5" Outside Corner for Stadium Facade Made of 1/8" Hardboard which results in a smooth hard paintable surface. After installing the Stadium facade panels, the outside room corners are trimmed with two 2.5" Joiner pieces affixed over the corner seam. Panels can be trimmed to size or spread apart to adjust for wall length, with corner seams hidden by these 2 1/2" Joiner pieces. (Narrower spaces may require the Inside Corner, which consists of two 2" Joiner pieces.) 2 Pieces at 9" x 2.5" each.

Outside corners are two 2.5" joiner pieces, which are shipped flat, unassembled.