metal flex

With most rolls being 30 metres, what are your thoughts on bigger rolls (i.e. 50 metres) or pre-cut lengths? Standard lengths or made to order lengths? Would this be an advantage on site?

I’m at college doing my nvq for plastering and for college I need an argument for a presentation to do with skim. I’ve been on for two years which is a blink to most of you on here. I just need the argument for why people don’t like plastics and people who do and the same about metal flex’s...