Fire line plaster board floor trim

[Guest Shaun]

Hi all, 

I am currently putting up a fire lined plaster board wall in my garage to create an office space. I have seen guidance that on the garage side I would need to place 150 mm high trim along the bottom of the wall where it meets the floor, just like a skirting board, but I cannot find anywhere that has 150 mm fire rated trim? Is this necessary or can I just use normal skirting to cover the gap between the floor and the fire lined plasterboard?
 

Many thanks

[Guest Shaun]

Could this be normal skirting or would it need to be fire rated?