The stair treads are steel. They project out approximately four feet from the wall. Steel embed plates were formed into the concrete. The contractor did a fabulous job welding the treads on and getting them perfectly aligned so they appear to have been formed into the concrete.

Were the steel plates exposed when he welded them and then skimmed over with cement? Thanks

Yes, the steel embeds were flush with the surface of the concrete. There was no skimming or concrete. Everything there was in the formwork. Again, a fabulous job welding and not damaging the concrete.

LED downlighting in the hand rail. I'll bet that looks very cool. Any idea where I could find hand railing like that?

can u tell me the thickness of stair
I m thinking to do this with wood and is the distance between stair standard?