Typically installed with clips or channel thru the curb, not ideal but somewhat necessary, size and layout dependent. Quite often they are installed with clips at the wall and structural silicone to the curb which works as well. Again, somewhat size and layout dependent. Your layout will require the clips at the curb without a doubt due to the fixed sidelite at the door.

once the curb waterproofing is penetrated the Waterproofing and liability of the shower leaking, transfers from tiler to the glass CO. If you are hiring glass co yourself you also will be tangled up.

Id request a channel silicone'd to the curb and omit clips only on the curb. also request a written guarantee of no leaks from Glass Co.

Being i only allow my chosen glass Co. to work on my projects I have a say in how its installed.

Planning ahead i usually utilize a u channel recessed into the tile no screws.

Thank you both for the input.

I went ahead and ordered the enclosure with the three bottom clips, as depicted. I‘m still nervous and really hope this is not a bad decision. I’m told they’ll seal the penetrations with silicone, but… If problems arise, I have both my GC/project manager asserting it will be fine in writing. And the GC is the one hiring both the tile guys and the glass company (i.e. I’m paying the GC for the overall….and GC has done wonderful projects for people I know.).

Now just…to wait the 5wks lead time… W00t, supply chain!