Nail manicure filing

Nail expert: the importance of parallel sidewalls for a beautiful nail finish

By Katie Barnes | 21 July 2025

Award-winning nail technician & Katie Barnes Tool Range & Education founder, Katie Clark, offers insight… Parallel sidewalls start at the cuticle zone and end at the free edge. They mirror each other and help to give a nail enhancement a slim and slender appearance. The term, ‘parallel sidewalls’, is frequently…

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How to perfect proper nail structure

By Katie Barnes | 9 May 2017

Salon owner, educator, former Scratch columnist and award-winning nail stylist, Katie Barnes, reveals the components of proper nail structure for a perfect nail finish… While a nail enhancement featuring beautiful embellishments and nail art may look good to the eye at first glace; if the enhancement’s foundation isn’t sound then it will not have…

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