The detail is the relationship.
One room. A different finish.
Room plate / S–01Your direction
The threshold meets the adjoining finish. The accent line locates the change; levels, movement and installation details need a site review.
Visual samples only. No product availability, quantity, waterproofing or construction approval is implied.
Niche & exposed edge
Discuss alignment, visible returns and how the recess relates to the whole elevation.
Screen & threshold
Bring both adjoining materials into the same drawing.
Setting out
Resolve the whole elevation before approving a small attractive fragment.
Add a junction to your brief