✅ Two main ways to create fall on a suspended slab 1. Recess the slab (pre-formed setdown) This is the best and most common method for new builds and major renovations. How it works: The engineer specifies a shower setdown—a lowered area within the bathroom slab. The slab in the shower zone is usually dropped 40–60 mm below the main floor level. The screeder/tiler then builds falls using a mortar screed back up to the required heights while maintaining a level threshold at the entry. Why it’s id