Single-leaf metal swinging door as classified by Fire Standard EI260. Approved sound insulation according to Standard UNE-EN ISO 14140-2:2011 between 34 and 38 dB depending on door configuration. Measurements tested up to 2,100 mm in height. Leaf thickness of 63 mm with a peephole included. Galvanized steel sheet door leaf and frame in 1.2 mm and 1.5 mm, respectively.