In this particular case, it's about an opening in a heart wall that needs to be supported with a glulam beam. If I use a glulam beam that is 90mm wide and about 250-300mm high, then the glulam beam becomes approximately as wide as the standing studs. How do you stabilize it laterally then? If the glulam beam had been narrower, I could have notched the standing studs and let them go all the way up to the top plate. That way, it would have good lateral stability. But what do you do with a glulam beam that is 90mm? Do you let the glulam beam rest on the end grain of the studs only? On the entire surface, that is? The stud thickness is 90mm, I should add.