Reference: ABB-10 - Solid Cast iron Metal Reeded panels a complete set for a fireplace opening consisting of one large back panel and two sides. Higher than most on the market. Please note these are very heavy and requires a two man lift. Ideal for Georgian Fire basket openings or stove chambers. Size in Inches. 1x 40x40 2x 40x20 Approx 3/8"Inches thick. Delivery available direct from manufacturer. Lighter Vermiculite Board also available.