you could just use a plastic
https://www.cabp.co.uk/Plastic-Fasc...-Architrave-Gloss-Anthracite-Grey_LA540AG.htm
looks like the square edge is also covered Anthracite
I thought as the frame looked white that 9mm of white would be OK
https://www.cabp.co.uk/Plastic-Fasc...-Architrave-Gloss-Anthracite-Grey_LA540AG.htm
looks like the square edge is also covered Anthracite
I thought as the frame looked white that 9mm of white would be OK