My home is elevated at the front and has a garage underneath (at ground level) that is constructed of masonry blocks (old style besser blocks I think - they are not solid concrete blocks) with an in-situ cast reinforced concrete roof (approx 200mm thick) and part of the house is built on top of that in-situ slab.
I want to put a 1200mm doorway in one of the garage walls and will need to remove some of the concrete blocks, this will require steel lintels etc. I have done some research but my situation doesn't seem to fit any standard senario's provided by steel merchants etc.
I was intending to use two 150x100x10mm standard gal angle sections, would this be adequate?
I suspect that this probably significant overkill for the situation but it's better to be sure than sorry!