A60 Single Sliding door is approved for the Marine & Off-shore Industry, this according to IMO 2010 FTP Code Part 3, IMO resolution MSC.307(88). Clear opening tested 1170x2107mm (possible to increase + 10% area or 15% height or width) this due to the test where we reached over 69 minutes. Please contact our Sales Director Mr. Brian Pedersen for more information: brian@aluflam.dk