Glossary
Square Nails
Definition
Nail Shapes
Square nails have a straight free edge and side edges that stay relatively parallel, with crisp or slightly softened corners.
Explanation
Square describes the outline after filing, not the nail product. The shape can be worn on natural nails or created with gel or acrylic. A true square keeps defined corners, while a soft square rounds them slightly. Nail width, sidewall condition, length, and daily work affect how practical the shape will be.
True square, soft square, and squoval
A true square has a straight tip and clearly defined corners. Soft square keeps the straight overall edge but gently rounds the corners. Squoval blends a square foundation into a more continuous oval curve.
The names are used differently between salons. Show whether you want the sidewalls parallel and how much corner rounding is acceptable.
Natural nails and enhancements
Short natural nails often suit a soft square because the shape follows a compact free edge. Longer, sharply squared corners may catch more easily. Extensions allow a technician to build straighter sidewalls, but their thickness and stress point must be balanced for the chosen length.
Filing too deeply at the sides can narrow and weaken the nail. A professional can correct a crooked free edge without removing unnecessary sidewall support.
Keeping the shape even
Use a fine file only on the free edge and avoid sawing aggressively into the corners. Gloves can reduce exposure during wet or chemical work. If one corner repeatedly breaks, a shorter soft square may be more practical than rebuilding a sharp point each time.
Enhancement maintenance is based on growth and balance, not just colour. Lifting or cracks should be professionally repaired or removed rather than sealed over.
Frequently asked questions
What is the difference between square and squoval nails?
Square nails have a straighter end and more defined corners. Squoval nails start from a square shape but round the corners and tip into a softer continuous curve.