Home2 1/4" MDF Casing [Ultralite Backband Casing]Model # 356BBMI85 (Length 85")Contact Us to PurchaseSpecifications Model # 356BBMI85 (Length 85") Imperial Thickness x Height 9/16" x 2 1/4" Metric Thickness x Height 14.29mm x 57.15mm Material MDF Finish Primed