MDF backing boards for picture frames. Basket 0 Log in Menu Home Frames Picture frames Poster frames Floating frames Classic canvas frames Anti-glare frames Custom size Border mat mount Frame accessories Frame accessories Acrylic sheets Backing sheet Backing board Packing materials Cleaning Tape Photo accessories Photo accessories Photo folders Photo paper DVD covers Envelopes Frame samples Stretcher bars Fast delivery 5/5 on Trustpilot 365 days money back guarantee Safe online payment Back Home Frame accessories MDF Backing Boards MDF Backing Boards for picture frames. MDF sheet, which are smooth on both sides. Cut to order in sizes up to 91.5 x 122 cm (36"x48"). MDF board, 2mm, smooth on both sides.