New garage roof large span

[BotusBuild]

The new garage being built with ICF walls has an internal floor dimensions of about 5m x 6m, with the single pitch (flattish) roof sloping from one 6m side to the other.

My current plan is to put in a central 5.5m(ish) beam with joists at right angles (~3m each).

Q. Glulam or steel for the central 5.5m beam?

[Mr Punter]

Glulam will be deeper.  Price up in both.

[Oz07]

I'd be surprised if glulam is cheaper so I'd lean towards steel. I have a garage 5x5m with 45x 225 timber joists. Was looking at extending the width to 6m and I don't think you can make it work running the joists this way. I can either put a steel over garage door and run timbers 5m way, put rsj in where current 5m wall is, or you can get I beam/jji joists/posi joists to span the 6m. Would that be a solution for you?