Dear folks, were changing some fire doors as the ones we have are inward facing. They are dbl doors but we want single ones. Were gonna brick up ne side and then put in a new single door but, are there any specifics that need addressed over size, width hinges etc? I thought a 36 inch door was ok. Any advice welcomed.

see below from the regulations, more info if you need it there!

There should be enough available exits, of adequate width, from every room, storey or building. The adequacy of the escape routes and doors can be assessed on the basis that:

a doorway of no less than 750 millimetres in width is suitable for up to 40 people per minute (where doors are likely to be used by wheelchair users the doorway should be at least 800 millimetres wide); and

a doorway of no less than 1 metre in width is suitable for up to 80 people per minute.

Where more than 80 people per minute are expected to use a door, the minimum doorway width should be increased by 75 millimetres for each additional group of 15 people.

For the purposes of calculating whether the existing exit doorways are suitable for the numbers using them, you should assume that the largest exit door from any part of the workplace may be unavailable for use. This means that the remaining doorways should be capable of providing a satisfactory means of escape for everyone present.