Michael Lewinski

The square technique

1:29:31 Pro Long men's haircut Gradation and Layers • Chinese Knife • Texture and Quilting
A course on the square cut technique for men with longer hair. Learn how to create a light, symmetrical shape while maintaining length, by consciously working with body posture and the direction of the hair strands.
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What you'll learn

01

How to accurately divide the head into sections based on anatomy.

02

How to create a square shape by routing each strand back to the previous one.

03

Why proper posture is key to a symmetrical haircut.

04

How to seamlessly connect the back to the sides to create a defined corner.

05

How to add volume and lift to the top of your hair and your bangs.

06

How to verify the accuracy of a cut using the cross-checking method in the opposite direction.

The square cut technique on longer men’s hair is a fundamental method for creating a masculine style that preserves length while removing weight and correcting flat areas of the head. The course demonstrates how to create a light, dynamic hairstyle with distinct structure and natural movement on hair that falls flat and creates unwanted weight, addressing the needs of clients who want to grow their hair out.

Michał Lewiński guides you step by step through the entire layered haircut process: from precisely dividing the head into sections, to building the shape at the back by directing each strand toward the one before it, all the way to seamlessly blending the back with the sides and creating volume on top. The course emphasizes conscious work with body posture—how maintaining a single position and checking the mirror become the key to symmetry on both sides of the head.

In this course, you'll learn:

  • Building a square shape step by step, with each section layered over the one below—the foundation of a symmetrical cut on longer hair.
  • A precise division of the head into three key sections (back, sides, top) based on the anatomy of the skull and the mastoid process.
  • Using body posture as a tool – why standing still and checking your form in the mirror are key to maintaining symmetry.
  • A smooth transition of length from the back to the sides and a deliberate shaping of the corner that defines the square shape of the hairstyle.
  • Customization and texturizing using a thinning shears to add lightness and remove bulk without cutting the hair shorter.
  • Style your hair for a natural, relaxed look using a diffuser and bobby pins to lift the hair at the roots, without the stiff, overly styled look.
  • Cross-checking – how to check your work by combing the hair in the opposite direction (vertical cut, horizontal check).

After this course, you’ll be able to work confidently with longer men’s hair, transforming the classic square cut into a tool for sculpting shape and adding volume. You’ll understand how body posture affects cutting precision and learn to create light, naturally falling hairstyles for clients who want to keep their length but get rid of the problem of flat, heavy hair.

What's inside

Full access to the course
0:19
01

Diagnosis and haircut plan

"There are places here that are very flat; we'd like to restore that shape."

14:58
02

The key role of posture

"If I stand up straight, I can pull the strand out perfectly straight."

22:42
03

Band redirect for a square shape

"I'm redirecting the second strand to the first. This is necessary to create a straight line."

29:56
04

Working on the curve of the head

"We're in a pretty tough spot right now. We're just barely hanging on."

44:15
05

Verification of the cut using the cross-check method

"We always perform this check using a counter-steer."

46:51
06

Creating a corner when joining sides

"We need to remember to leave a corner here after we trim it."

57:08
07

Avoiding mistakes when joining the top

"Your hair will be your longest memory, not your shortest."

64:06
08

Personalization - Deconstruction of Form

"It's important to learn how to construct first, and then deconstruct later."

Frequently Asked Questions

Is this course for beginners or for advanced hairdressers?
This course is perfect for hairdressers of all skill levels. Beginners will master fundamental techniques, such as precise sectioning and proper posture, while advanced students will refine their ability to create a symmetrical, square shape.
Will this technique work on men's wavy hair?
Yes, the technique is demonstrated on a model with hair that is heavily wavy at the sides. The instructor explains how to control the length so that the hairstyle falls nicely and not to cut the hair too short.
My client has a flat occipital region. Will this course help me correct it?
Yes, the course demonstrates how to use the square technique and appropriate layering to correct flat areas of the head. The goal of the haircut is to restore the desired shape and reduce unwanted volume.
Why does the course place such a strong emphasis on posture?
Proper posture is key to maintaining symmetry on both sides of the head. Michał Lewiński demonstrates how standing still and checking your reflection in the mirror can prevent mistakes when redirecting strands.
What tools do I need for this haircut?
Standard tools are needed to perform a haircut: scissors, a comb, and hair clips. To customize the style, the instructor uses a Chinese razor, and to finish the look, a trimmer and a hair dryer with a diffuser.
How long is this video course?
The course lasts 89 minutes and walks you through the entire haircut process step by step, from sectioning the hair to the final styling.

Unlock the full course "Michał Lewiński - The Square Technique"

Full access to this course and the entire Connected Hair Academy library. Step-by-step, with subtitles and key highlights.