JB1 - The ceilings on the whole lower level (bath 3, laundry and garage) are 3.5m. There is still 4.5m of bench and cupboard space across the two sides - plus the double cupboards in the laundry which is why we didn't go for more storage overhead. The hanging bar was a necessity for us though .
Plenty of storage, plus You always have the option later on in future.
I think storage is one of those things, just like a bank account or jewellery for my wife, it's never enough! lol
I tiled to the ceiling in my laundry, but with 3.5m ceilings, it's hard to justify.