M-series M53
Weighted sound reduction index Rw = 53 dB
Suitable for indoor and outdoor applications
Available from 40 working days
The M-series M53 is a high-performance steel door developed for environments where maximum sound reduction is required. The door combines excellent acoustic performance with a robust and durable construction, effectively limiting airborne noise in industrial, commercial and technical environments. It is available as a single or double leaf and can be manufactured to open left- or right-handed, allowing easy integration into a wide range of installations.
With a weighted sound reduction of Rw = 53 dB, the M-series M53 provides outstanding airborne sound insulation where acoustic performance is the primary requirement. The door features a durable double-skin construction with galvanised steel sheets that contributes to long-lasting reliability.
With a standard door leaf thickness of 75 mm and a mass of approximately 45 kg/m², the M53 offers a stable and durable closure. The M-series M53 is supplied without fire resistance and provides a flexible foundation for applications where acoustic performance is the main priority. The door can also be finished in any RAL colour, ensuring both technical performance and architectural consistency across all applications.
The features above can be combined and tailored to your project. For more custom possibilities, or guidance in selecting the right door, our specialists are happy to help you find the best solution for your application.
M-series doors are suitable for integration in standard building façades, as well as in technical housings and industrial enclosures. They are commonly used in transformer and electrical rooms, mechanical spaces, data centres, laboratories and other facilities where safety, durability and performance are essential.
Answers to common questions
Merford doors can be made airtight and thermally insulated, contributing to energy savings in buildings and supporting sustainability targets.
Yes, we provide comprehensive service and maintenance for all our doors. Our specialists carry out periodic inspections, check mechanical and electronic components, and ensure the doors maintain their original performance in terms of sound insulation, fire resistance, and security. This guarantees long-term reliability and optimal operation, even in demanding environments. Service can be provided on a contract basis or as a one-time request.
Yes, our doors are available in custom widths, heights, leaf configurations, and finishes, suitable for both new builds and renovations.
Our M-series doors can combine sound insulation, fire resistance, smoke control, burglary, or bullet resistance in a single door. Depending on the project, ventilation, ATEX safety, transformer protection, or anti-panic functionality can also be added, though not all features can always be combined simultaneously.
