Mounting polyurethane beams to the ceiling
Prepare a small wooden billet in the shape of a wedge. The billet should match the size of the beam you choose.
Drill a hole in the billet in the center and secure it to the ceiling.
While doing so position the billets every meter.
Attach the beam with a self-tapping screw or otherwise to the billet in the middle.
Since the joints and attachment points will be visible on the attached beam, you’ll need a decorative faux ceiling beams straps that mimic old forged metal straps.