1. Square Nails
The square nail shape is pretty self-explanatory. Square nails are square—they’re flat on top with straight, sharp corners. They neither flare out nor taper in and are a popular shape for those with short nails or long, narrow nail beds.
2. Round Nails
The classic round shape is another favorite for those who prefer to keep their nails clipped short. Like square nails, round nails start with straight sides but curve at the edges to follow the natural shape of the fingertip.
Square oval or squoval nails are perfect if you’re into the flat edge of the square but hate sharp corners. Squoval is your best option. This universally flattering shape has softened corners for the best of both worlds.