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Hair Extension Length Guide: 18 to 26 Inch Extensions

How to Choose the Right Hair Extension Length

Selecting the right hair extension length is one of the most important decisions in the consultation process. The wrong length can look unnatural, be difficult to blend, or simply not achieve the result your client is looking for.

Hair By Russians offers South Russian Slavic hair extensions in five standard lengths: 18, 20, 22, 24, and 26 inches. Here is what each length achieves and who it works best for.

How to Measure for Hair Extensions

Extension length is measured from the top of the weft or bond to the tip of the hair strand – not from the installation point on the head. When measuring a client, measure from approximately where the extension will be installed (usually around the mid-ear to nape area) to determine what final length they will achieve.

18 Inch Hair Extensions

18 inch extensions are considered a medium length. They typically fall just below the shoulder blade on most clients. They are ideal for:

  • Clients who want a natural-looking length boost without dramatic change
  • Adding volume and thickness to shoulder-length hair
  • First-time extension wearers who want a manageable length
  • Summer or active lifestyles where shorter is more practical

20 Inch Hair Extensions

20 inches is a popular all-around length. The extensions fall mid-back on average-height clients. Good for:

  • The most natural-looking everyday length for most clients
  • Clients transitioning from shorter to longer hair
  • Stylists who want a versatile length that works for most looks

22 Inch Hair Extensions

22 inch is the most commonly ordered length in our wholesale range. It sits mid to lower back and creates a noticeably longer look without being extreme. Works well for:

  • Clients who want clearly visible length
  • Wavy and curly styles that lose length when styled
  • Clients with naturally long hair looking for volume and density

24 Inch Hair Extensions

24 inch extensions reach the lower back. They make a strong visual statement and work best for:

  • Clients who specifically want long hair
  • Editorial and special occasion styling
  • Clients with longer natural hair who want seamless blending

26 Inch Hair Extensions

26 inch is the longest length we offer. It reaches past the lower back and creates maximum impact. Best for:

  • Clients who want the longest possible result
  • Fashion, editorial, and performance use
  • Experienced extension wearers who know how to manage long hair

Length and Curl Shrinkage

If your client plans to wear their extensions curly or wavy, account for shrinkage. Curly styles can lose 20-30% of length. A client wanting mid-back curly hair may need 24 or 26 inch extensions to achieve the same result that a 20 inch delivers straight.

Order Length Samples

Not sure which length is right for your salon clients? Contact us about ordering sample lengths to show clients during consultations.

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