01/08/2026
Planning a garage below bathrooms means working backwards from the plumbing
Here, the 100mm PVC pipe helps set the lowest point we need to allow for above the garage
That then affects the ceiling height, and from there the garage door opening
There also needs to be 250mm below the ceiling as a minimum for the garage door
It’s the kind of coordination that needs to be discussed early with the plumber and garage door company