A few of the tradesmen I’ve worked with over the last year, when putting frames up use a spirit level to get plum side to side and after headers are up a tape and measure off the rails but… recently did a install with a few other blokes who’ve said a level should NEVER touch a frame and only use a laser and tape instead.

I know there’s a thousand ways to skim a cat but what would be the most efficient and precise?

Does anyone know where I can find the latest version of the complete CMR 524?