Summary:This guide provides clear, step-by-step instructions to help you select the correct length, weight, and width of weft hair extensions for a flawless, salon-quality result.
Key Takeaways
- Measure Correctly: Section your hair above your ears and measure from temple to temple.
- The Blending Rule: Choose extensions 1-2 inches longer than your natural hair for seamless blending.
- Weight for Volume: Select gram weight based on your desired volume and natural hair thickness.
How Do I Measure My Hair for Weft Extensions?
Accurate measurement is the first step to a perfect match.
Prepare Your Hair
Ensure your natural hair is straight and dry.
Create a Section
Horizontally section your hair just above the tops of your ears.
Measure
Using a soft measuring tape, measure from one temple, across the back of your head, to the other temple. This determines the needed weft width.
Match to Chart
Use your measurement with our size chart below to find your base weft width.
Choosing the Right Length
Hair extension length is measured when the hair is straightened. To find your ideal length, consider your natural hair length and add 1-2 inches for optimal blending.
Ideal for adding noticeable length to shoulder-length hair, reaching the collarbone.
A versatile length that typically provides mid-back coverage.
An extra-long length for maximum impact and dramatic transformation.
Important Note on Curly Hair
Curly or wavy extension styles will appear approximately 20-30% shorter when curled. A bundle will also look fuller in curly textures compared to straight hair. Always account for this difference when selecting your length.
Weft Hair Extensions: Size, Weight & Width Chart
Use this chart to select the standard weft based on your chosen length, needed density (weight), and width.
| Length (Inches) | Gram Weight (g) | Weft Width (cm) | Best For |
| 12 | 70 | 120 | Adding subtle volume and highlights. |
| 14 | 70 | 100 | Short to medium-length volume and blend. |
| 16 | 100 | 110 | Standard length increase and natural volume. |
| 18 | 100 | 105 | Mid-back length with balanced density |
| 20 | 100 | 100 | Long hair with maintained fullness. |
| 22 | 100 | 95 | Extra-long hair with tapered density. |
| 24 | 100 | 85 | Maximum length with natural density distribution. |
Heavy Weight Weft Hair Extensions
For those with thick natural hair or seeking very full, dense volume, our heavy-weight wefts offer more hair per bundle. The width corresponds to the standard weft sizes listed above.
- 18-20 inch wefts: 120g
- 22-24 inch wefts: 135g
Regular vs. Heavy Weight: How to Choose
- Choose Regular Weight (70g-100g): If you have fine to medium hair thickness and seek natural blending, added length, and moderate volume.
- Choose Heavy Weight (120g-135g): If you have medium to thick hair and require maximum coverage, high density, or a very voluminous style.
Genius Weft Hair Extensions
Our Genius Wefts are designed with a unique construction for ultra-comfort and a seamless fit. Below are the current specifications.
| Length (Inches) | Gram Weight (g) | Weft Length (cm) |
| 14-16 | 50 | 80 |
| 18 | 60 | 80 |
| 20 | 70 | 120 |
| 22-24 | 80 | 110 |
FQA
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