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Hi there. new to the forum and finding it really useful, so thanks in advance to anyone that reads this and replies. firstky, I have no previous experience of installing these lintels! I just wanted to check if a minor amount of deformation in a catnic lintel is to be expected, or whether...

I've got a ceiling span of 2.15m Trying to keep ceiling joist depth to a minimum So am thinking 47 by 72 at 300 centres Do you think I'll have a happy, or saggy, ceiling on these figures? btw: I'm assuming I won't get away with smaller than 72 depth? loading is less than .25kn/m2 (floor above...