Narrowest 30 minutes fire rated wall…

[ringi]

I am having to replace a separating “wall” that is a single layer of T&G boarding, so as to give 30 minutes fire protection. I also need to fit a door into the wall. There is very little space as the wall separates basement stairs from a very narrow corridor.

The wall is not very large, so cost per m^2 is not a great factor, but I must be able to fix a stair handrail to the wall.

Any ideals…

The best I have come up with so far is 50mm C-Channel fire rated plaster board.

 

[gregers]

could you not use jumbo?

 

[freddiemercurystwin]

could you not use jumbo?

I think you're missing the point.