POLYBOARD EXTERNAL MITRE JOINT (TAN)(0)No Reviews yet Pinit Please log in to see price or purchase this item Quantity discounts available QuantityPrice SKU: PBEJC Deliver Pickup in Depot - FREE! Select Depot to check availability. Details External mitre joint for joining two window boards together.Available in a range of colours.420mm x 25mm x 18mm. Details Back DetailsExternal mitre joint for joining two window boards together.Available in a range of colours.420mm x 25mm x 18mm. Reviews 0 Back Ratings & ReviewsNo reviews availableBe the first to Write a Review