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A Guide to Building Regulations for Doors


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What are the building regulations for doors?

In England, as well as excepted energy buildings in Wales, the building regulations for doors are outlined in Part M (Access to and Use of Buildings) and Part B (Fire Safety) of the Building Regulations. These regulations set out the requirements for the accessibility of doors for disabled people and the fire resistance of doors, respectively.

Part M requires that doors be of a minimum width to allow wheelchair access, and that they have appropriate handles, locks, and opening mechanisms. Part B requires that doors meet certain fire resistance standards depending on the location and use of the building.

In addition, Part L plays a crucial role in ensuring that doors and other building elements are designed and installed in a way that promotes energy efficiency and helps to reduce the carbon footprint of buildings.

It's worth noting that different building types and uses have different requirements, so it's always best to consult the specific regulations that apply to your building project.


   Part M - Access to and Use of Buildings

Part M of the Building Regulations refers to accessibility for disabled persons. This is to ensure ease of access and mobility around a building. This usually means wider door openings for wheelchair access, and specifically placed door handles and glazing.


   Part L - Conservation of Fuel and Power in new builds

This regulation relates to the energy efficiency of a property, primarily to limit heat gain and loss. A door that complies to Part L means it is fitted correctly with no gaps, it is of the correct thickness, and the correct materials have been used. The thermal efficiency of a door needs to have a minimum U-value of 1.8W/(㎡K).


   Part E - Resistance to the Passage of Sound

Building Regulation Part E stipulates requirements covering sound control and reduction. In certain instances in dwellings, for example when used in entrances to flats or apartments, doors are required to demonstrate an appropriate decibel reduction value. 


   Part B - Fire Safety

Doors complying with Building Regulations Part B have been formally tested as a fire resistant barrier for a defined period of time, most commonly up to 30 or 60 minutes. When correctly installed, fire doors offer protection of escape routes for occupants and contribute to maintaining the fabric of the building under fire conditions.


You'll find more helpful bite-sized articles outlining the requirements for each building reg in our Building Regulations hub.


Disclaimer: The information contained on this page is intended as an overall introduction and is not intended as specific advice from a qualified professional. Travis Perkins aims to avoid, but accepts no liability, in the case that any information stated is out of date.