How Many Hair Bundles Do You Need for a Full Install?
You’ve chosen your hairstyle, picked your length, and you’re ready for your install. Then comes one of the most common questions:
How many hair bundles do I actually need?
For a full install, the answer depends on more than simply choosing two, three, or four bundles. The length of the hair, the weight of each bundle, your preferred fullness, hair texture, and the style you want can all affect how much hair you’ll need.
Before we get into the numbers, let’s start with the basics.
What Is a Hair Bundle?
A hair bundle is a quantity of extension hair that has been sewn onto a weft and packaged together for use in sew-ins and other extension styles.
One important thing to check when buying bundles is the weight. Not every bundle contains exactly the same amount of hair, which means the number of bundles alone doesn’t always tell you how much hair you’re getting.
Length also matters. Longer hair can appear less full than shorter hair of the same weight because that weight is distributed across longer strands.
That’s why choosing your bundles should be based on the overall amount of hair and the look you want to achieve, rather than the number of bundles alone.
Hair bundles are wefted extensions used to build the length and fullness of your sew-in.
So, How Much Hair Do You Need for a Full Install?
At Shanorla, approximately 300–400g of hair is commonly used to achieve a full look, depending on the length, texture, and desired result.
If the individual bundles you are purchasing are 100g each, for example, 300–400g would be equivalent to approximately three to four bundles.
However, this should be treated as a guide rather than a rule.
Someone choosing a shorter, naturally full style may require less hair than someone wanting a long, glamorous look with plenty of volume.
The right amount of hair is the amount needed to achieve your desired look without making the finished style unnecessarily heavy.
What Determines How Many Hair Bundles You Need?
1. Your Hair Length
Length is one of the biggest factors to consider.
As hair gets longer, the same weight of hair is distributed over longer strands. This can make longer bundles appear less full than shorter ones.
For example, the amount of hair needed for a short style may not be the same as what you would choose for a 24-inch or 30-inch install.
If you’re going for longer hair and still want a full finish, you may need more hair to create the volume you have in mind.
2. How Full You Want Your Hair
Think about the finished look you want.
Some clients prefer a lightweight, natural-looking install that moves easily and mimics the density of natural hair. Others want something much fuller and more glamorous.
Neither is wrong. Your preferred density simply helps determine how much hair should be used.
If you have an inspiration picture, bring or send it before your appointment. It gives your stylist a much better idea of the fullness you’re trying to achieve.
3. The Hair Texture
Texture can dramatically change how full the same amount of hair appears.
Curly and coily textures naturally create more volume, while straight textures tend to lie flatter. This means 300g of curly hair may visually appear much fuller than 300g of straight hair.
Rather than choosing your bundles based only on a number, consider how the texture will behave once installed and styled.
4. Closure or Frontal
If your installation includes a closure or frontal, this also contributes hair to the finished style.
A closure covers a smaller area at the top of the head, while a frontal provides wider coverage across the front.
Because the closure or frontal becomes part of the finished hairstyle, it should be considered when determining how much additional bundled hair is required.
5. Your Desired Hairstyle
Your hairstyle can make just as much difference as your length.
A sleek, straight install, a layered look, and a voluminous curly style will not necessarily require the same amount of hair.
Layers, curls, and certain bridal or special-occasion styles may also require a particular level of fullness to achieve the intended finish.
This is another reason why choosing your hair based on the final look is more useful than simply deciding that every installation needs a certain number of bundles.
Your desired length, texture and fullness all help determine how much hair you'll need.
Should You Buy an Extra Bundle?
If you’re unsure whether the amount of hair you have will be enough, it’s best to check before your installation.
Having insufficient hair can limit the fullness or style that can be achieved during your appointment.
At the same time, more hair isn't automatically better. Using more than the style requires can make an installation unnecessarily heavy.
The goal is to have the right amount for the look you want.
Not Sure How Much Hair to Buy?
There is no single bundle count that works for every full install.
Your hair length, texture, desired fullness, closure or frontal, and chosen hairstyle all play a role in determining how much hair you'll need.
At Shanorla, most wigs are created using approximately 300–400g of hair, depending on the desired result. If you're purchasing hair for an installation and aren't sure how much you need, getting guidance beforehand can help you avoid buying too little or more than necessary.
Ready for your next install? Explore Shanorla's hair collection or book your installation and get help choosing the right hair for your desired look.