Brackets project from a wall in order to bear weight for shelves or parts of the architecture of a building like cornices. We use Azek and Versatex for our PVC brackets.
Brackets can be simple to elaborate. These are some decorative brackets that Finyl Sales has custom created.
Corbels are brackets, usually of slight extent used mostly to support a girder.
Rafter tails are the ends of rafters that are exposed and can be of many shapes to add to the distinctive style of your project.