Can you see the steel posts just inside the frame – on both sides? this meant on-site notching of the sliding sill and head to suit, and then cladding the entire beam in cedar to blend/match.

That post next to the sliding door panel is the steel beam. it has been clad in cedar, and you can see the Kapur sill has also been patched/reblocked to look seemless. (the post is slightly wet from wiping the woodglue down).

The double-glazed panels ranged from 70-115kilograms.