Bullnose corners are cement block with a preground rounded corner that are used at openings such as windows or doors in buildings. They come in all different sizes of cement masonry units. They help to reduce the risk of injury. In many places that are for public use, these corners are required by building codes.
Bullnose corners are finishing pieces designed to mask perpendicular joints. A bullnose corner piece is generally a convex quarter circle in profile and are cut to length. In ceramic tile, bullnose corners refer to the pieces used on the topmost row of a tiled wall, which have an edge which is rounded to give the tiled surface a finished appearance.
Bullnose corners are most commonly used to be able to easily trim if you have a rounded drywall. They are great if you want to save time and money. If you mess up it can be costly to fix it because they are designed to keep you from messing up on this type of project.
a bullnose corner means its round and has no edges different woods do have a bullnose like skirting
boards you can also buy a plasterers trowel that has a bullnose for smoothing over cement so it doesn't leave lines in it.
Bullnose corners are the edge of the countertop in the kitchen that are rounded down. It is easier to clean the countertops and a square corner is harder when you bang your hip, elbow, head, or any other sensitive body part on it.