@naor_nl @pluralistic Welcome!

@hrast @philcowans The panels are light, so the design choice of visually heavy beams was probably an aesthetic one rather than structural.

You can see inset access panels in the cross members which suggests that the securing bolts are hidden but accessible, which tells me that effort was applied to hiding the fasteners, which implies that someone spent a lot of time on the visual impact of those beams.

Could be they aren't actually solid glulams, but boxed trim over skinny beams.