29" x 44" faceplate backing plate kit

Complete your Osburn Matrix wood insert installation with this 29" x 44" faceplate backing plate kit, designed to provide a clean, professional finish. This backing plate fills gaps between the insert and the masonry fireplace opening, ensuring a seamless transition while enhancing the overall appearance. Made from durable, heat-resistant materials, it adds both structural support and aesthetic appeal. Ideal for retrofits, this kit simplifies installation and delivers a refined, custom look to your hearth.