I have a garden room that will span 4.5 x 5.5m. Currently going through PP to try and get up to 3m height. If that fails I'll make do with the 2.5m allowed height but would like to run a steel beam across the 4.5m width to halve the 5.5m length and use smaller timbers.
I've been told a 6 inch I Beam should be good with my flat cold roof. However I've been looking and obviously there are different gauges. Anyone have an idea what would be a sufficient sized steel
TIA
I've been told a 6 inch I Beam should be good with my flat cold roof. However I've been looking and obviously there are different gauges. Anyone have an idea what would be a sufficient sized steel
TIA