The supports are long steel bars that go through the shelves and into the studs in the wall. We predrilled holes for them before we tiled. We used oak planks seamed together to make a solid wood shelf." I love the hanging coffee mugs.
An easy DIY to add storage to a small bathroom. Just putting up some high shelves to store towels and baskets to hold smaller items. This is a great way to keep a small bathroom organized, while maximizing space.