"Christian McArdle" wrote in message
et...
Don't use steel RSJs in a loft conversion. This is total overkill. Use
Masonite "I" beams. http://www.masonite-beams.se

Their smallest is 200mm deep, which is too great. I'd might as well use
220mm timber. I'm really looking for sub 100mm, so it fits inside the
existing ceiling joists. Headroom is everything. I'm willing to pay 10
times
as much as a simple timber solution to bring down the depth.

TJI do shallower beams.