Can you mark them on a floor plan

You could clad them in timber or leave the section between them at 2700 and drop the sides to 2600. You could created additional fake cross pieces or long beams to add to feature beams. A floor plan will help see if patterns will work

"KISS" keep it simple, I would sheet the whole ceiling as 2.6 is a good height. What ceiling height do you have in other parts of the house

Thanks 3m rest of house. Here’s the downstairs plan. I’ve drawn the lines across room where beams are.

That could work as long as the plumbing pipes etc as shown can be covered, Plus working with the outside beams, is there any internal access to the house?

Thanks - gorgeous pic but there is plumbing etc. No internal access as will be used as granny flat/air BnB.

Keep all the ceiling at 2.7m. It won’t look weird it will add interest. Leave the STEEL beams showing, not in a bulkhead. Either highlight them or paint the same colour as ceiling. There is no need to make all the ceiling 2.6m. You have the height so don’t cover that up.

I’d use them as a feature, keep the height and either keep them natural or clad them in wood to create faux wood beams.

Another example of beams incorporated into ceiling as a feature.

If you are using it for a separate AirBnB space, keep it flat at 2600mm and incorporate extra sound insulation including a small strip below the beam if possible, even if it is only 10mm. It will help reduce sound transmission straight through the beam to/from above.

C.