No more confusion over felting needles

What felting needles do I need? It’s the one thing that gets us needle felters confused when we first start this fabulous craft. A gauge for this, a star or triangle for that. What’ s the difference between a size 32 and size 38, and what on earth do I do with this reverse needle felting needle I bought? Well stop tearing your hair out because I am going to dive into what to use, as well as my own personal preferences. I will also tell you about the felting needle tools I couldn’t live without!

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Summary

WHAT DO THE DIFFERENT SIZES MEAN?

In short, needle sizes work like this: The higher the number, the finer the needle, and needle sizes range from as low as 19 up to 42. You will hear them referred to as:

  • Triangular: 3 sides 
  • Star: 4 sides 
  • Reverse needle
  • Twisted needle

WHAT DO THE SIZES MEAN?

In short, needle sizes work like this: The higher the number, the finer the needle, and needle sizes range from as low as 19 up to 42. You will hear them referred to as:

  • Triangular: 3 sides 
  • Star: 4 sides 
  • Reverse needle
  • Twisted needle
Infographic explaining needle sizes for felting: 36 gauge for starting, 38 gauge as a good all-rounder, 40 gauge for details, and 42 gauge for finer details. color-coded bands represent each gauge.

What Size Felting Needles Do I Already Have?

This is a common question as you may have a stash of felting needles without any clue of the sizes. This short video explains how easy it is to identify the felting needles you already have. Quick rule of thumb: The more a needle bends the finer it is.

What Felting Needle Should I Start With?

This is one of the most common questions I get asked, along with “What wool should I use?”, and it can be confusing when you first start needle felting. I prefer the simple approach and advise just one, or two sizes to start with. The 38 star is a good all rounder, and a 40 triangle for finishing your work; more details on those below. Once you are more confident with your needle felting you can start to introduce others into your felting stash.

The 38 star is my favourite as it will complete most needle felting projects from start to finish. TOP TIP! Always have a spare felting needle in case one breaks as you can’t just nip to the Co-op for a new one.

How Do Felting Needles Work?

Felting needles are designed specifically for wool which is full of tiny scales that run up and down its length and these scales just love to tangle together with each other.

Microscopic view of various textile fibers, including coarse wool, fine wool, alpaca, cashmere, silk, linen, cotton, and polyester, displayed in black and white for detailed texture comparison.

A felting needle is a long, thin needle with notches or barbs at the tip that’s used to create wool felt by tangling wool fibers together by hand, whilst creating almost any shape and detail you can imagine. This is also known as dry felting which is completely different to the more traditional process of wet felting. The wet felting process uses water, soap and agitation to create felt.

Diagram showing a felting needle, labeled with "handle" at the top and "working end" at the pointed bottom, illustrating the parts of the needle.
Close-up images of a felting needle showing its sharp tip and barbs that help in tangling wool fibers to create a strong bond. text describes the function of the barbs.
Diagram showing different shapes of felting needles including triangular, star, and twisted, with a focus on how barbs on the needles tangle fibers.

Felting Needle Safety and How to Use Them

Felting needles are incredibly sharp, so it’s important to handle them with care. Always work slowly and deliberately, ensuring you are focused on where you are poking the needle. Make sure to use a proper needle felting mat to protect your workspace and, more importantly, your fingers. Always keep your fingers in clear view as you work, and avoid rushing, as this is when accidents are most likely to happen. When using the needle, be mindful of the angle—pierce the wool in a straight line and avoid bending the needle as you go. Bending can weaken the needle and is a common reason they snap, especially with finer needles. By taking these simple precautions, you’ll protect both your tools and yourself, making your felting experience safer and more enjoyable.

A collection of felted wool animals, including dogs, a sheep, a rabbit, and a whimsical house atop a tree, displayed on a table with blurred shelves in the background.

Use A Good All Round Felting Needle

They are suitable for most needle felting projects, and less prone to breakage. A 38 or a 36 star (or triangle) can be used to start, shape, and build up any three dimensional needle felting project, or flat felted picture. I use 38 star needles (I like the four sides for faster felting) all the time, and they are the ones I also used in my needle felting kits. A 38 star felting needle will complete most projects from start to finish; a 36 gauge is too robust for finer details.

TOP TIP! Reduce needle marks by inserting your needle diagonally when finishing/smoothing the top layer. Rolling the body part in your hands (before attaching) is the fastest and most efficient way of smoothing your piece; your hands are just as important a tool as your needle!

Close-up of a person's hand crafting a small felt bee, using a needle tool on a wool pad, with two black pins nearby.
A needle felted snail with a brown and white shell and a green and white mushroom are arranged on a small, square burlap pillow with an animal sketch. A felting needle lies nearby on the pillow. Learning how to needle felt with confidence is the hardest part, but the results are rewarding.
Hands working on needle felting a yellow wool shape on a burlap surface, with other colorful felt objects and textile pieces around.

Best Felting Needle For Finer Details

A 40 triangle is ideal for much finer detail: be careful with it as it bends more easily so don’t be heavy handed with it.

I use this when I am finishing delicate eye and nose detail. Especially if the head is quite soft and I don’t want to distort the lovely shape I have made. It is also great for reducing needle marks on the top layer. You will notice that this needle is thinner, bends more easily than the 36/38 and is much more prone to breakage if bent too much. TOP TIP! Be careful when using it around a wire armature to avoid breakage.

Close-up of a pink and white felted toy mouse with a thin tail, lying on a brown surface. the mouse has a small black eye and a pointed nose, showing detailed needlework.
40 triangular needle is used for fine details…
Close-up of a hand holding a needle as it works on needle felting a brown object with a detailed yellow and black eye, against a burlap background.
top layers, and finishing touches

What Is A Reverse Felting Needle?

The barbs go in the opposite direction and pull the felted wool back out. There is also a great blog post dedicated to this fabulous needle felting tool

It took me a while to get used to this one, but now I wouldn’t be without it. It’s a little gem of a tool and I just love subtle effect it gives to, an otherwise, smooth finish. It all depends what wool you are using but I used mine to rough up the top of my moon gazing hares head to add character and dimension. I think it worked really well… The wool is natural Grey Jacob and which is one of my favourite wool tops to needle felt with. I also include it on my flamingo to ‘fluff’ up the body and base of the neck. Also great for use on 3D cats and dogs, perfect for hedgehog spikes, and adding detail and dimension to my fox head.

A close-up of a small, handmade felted fox head with detailed features and a needle sticking out, indicating it's a work in progress.
Three whimsical, handcrafted felt mouse sculptures with brown fur and big black eyes, positioned in front of a spiky, dried plant stem on a white background.
A close-up of a felted wool sculpture of a walrus with long tusks and large, floppy ears, set against a soft white background.
Top of this hare head is ‘fluffed’ with a reverse felting needle
A handcrafted needle-felted flamingo with pink and white wool stands in front of its product packaging. The flamingo has a long neck, black-tipped beak, and skinny yellow legs. The box behind it features an image and text describing the needle felting craft.
Notice the wisps on the base of the neck, pulled out by the reverse needle
A hand holds a small, intricately crafted needle felting sculpture of a sheep with a dark body, curly fleece, and distinct beige horns, set against a blurry background of colorful shelves.
Realistic Hebridean sheep with white showing on the face, pulled through with the reverse felting needle

Twisted Felting Needle

The first barb on a twisted needle is slightly closer to the tip of the needle than the 38 and 40 triangular, reducing the penetration required to start tangling the fibres together. It is just personal preference but if you are just starting needle felting I would recommend starting with a 38 star and 40 felting needle; you can try other sizes once the needle felting addiction has taken hold…

What Are My Favourite Felting Needle Tools?

None of the following are necessary but I use them all the time for certain projects and they really help speed up the felting process. Especially useful if you are now a needle felting addict (you know who you are…) and unofficial member of the Lincolnshire Fenn Crafts NFA group, ‘Needle Felters Anonymous’. Hmm, I’m thinking T-shirts and badges…

Wooden Multi Needle Tool

Can be bought from felting needle suppliers with 3 or 4 needle holes, uses standard needles (supplied) and needles are removable and interchangeable.

My preference is the 3 needle holder (using 38 or 40 triangular or star) as it can be used for starting off your 3D shapes quickly, as well as being used for flat felting e.g. big bunny or hare ears. Top tip: If flat felting, try starting with a coarser gauge needle, such as a size 36, which will speed up the process.

Close-up of a hand holding a green-handled felting needle tool, pressing it into a soft, white wool roving placed on a dark foam mat. The scene shows the process of needle felting, where the wool is being shaped and compressed.
Wooden needle holder
Close-up of a green acupuncture needle handle with two thin, protruding metal needles set against a white background.
Removable and interchangeable needles

Needle Felting Pen

Does pretty much the same as the wooden needle holder (above) but the needles are closer together making it great for faster flat felting. It also works really well on wool batts and the hessian felting mats filled with rice. Save money: You will see these in pink (Clover tool) and blue. The blue is half the price of the pink and the difference…one is from Hong Kong and one is from China?

Close-up of a felting needle tool working on a gray and white wool felt project on a black surface, showing detailed needlework and wool texture.
Close-up image of a needle felting tool with two sharp, barbed needles at its tip, actively being used to needle felt white wool on a foam block.
Great for starting projects

Multi Needle Punch Tool – Use for fast flat felting

Bring on the big guns! You can use from 1 to 7 needles (replaceable and interchangeable) with retractable guard. I can’t tell you how much I use this for flat felting ears, brooches, legs (before they are rolled and shaped), pictures etc. I use this one on my hessian felting mat. You will need to use fewer needles on foam otherwise it has a tendency to bounce without penetrating the wool. It powers through ears, wings, legs, gnome hats, poppy/flower petals, and pictures at a rate of knots! TOP TIP! Ideal for teaching the kids because of the locking, retractable guard and much less prone to breakage.

Close-up of a needle felting tool with a blue handle being used on brown wool roving, illustrating the needle felting process.
Vacuum cleaner nozzle picking up strands of pet hair from a textured needle felting fabric.
A close-up image of a deshedding tool with a blue handle, brushing through vibrant pink needle felting fur, with loose fur collected around on a textured surface.
Close-up image of a needle felting tool being used to create a textile piece with red and white wool fibers on a burlap surface.
Close-up of a blue and white insulin pen with needle felting and dosage markings visible on the dial, against a white background.
A package for a needle felting tool with seven needles, featuring a blue handle. The pack has a green background and pink floral designs. The item is sealed in a clear plastic blister pack.

Single Felting Needle Holder

This is very useful if your fingers are sensitive to the thin top of the felting needle, you have dexterity problems, or you are felting for long periods.

Close-up of a needle felting process with a wooden handle needle poking into a clump of grey wool on a fabric surface.
A handmade needle felting woolen sheep figurine, featuring black and white wool, next to a wooden crochet hook on a light background.

Best All Round Felting Mat

I use several mats, depending on the project. But, for a good all rounder you can’t beat a rice filled hessian mat. There are lots of different mats available but, for me, this is the best all rounder and can be used with all the multi tools. I use it for all of the above as well as my foam. I make my own Hessian felting mats with a piece of hessian/burlap, sewn around the sides with a small gap left to fill with dried rice. Always use a protective topper to extend the life of your felting mats.

Make A Needle Felting Mat With Me

Video Tutorial

A variety of colorful felt balls and shapes are arranged on a light blue wooden surface. There are felted bees, balls of pink, purple, and yellow wool, and a burlap cushion with felt balls on top. A wooden needle is placed across the cushion.
Step-by-step images showing the process of making a needle-felted bird, starting from wool fibers to the finished colorful bird sculpture.
A needle felted snail with a brown and white shell and a green and white mushroom are arranged on a small, square burlap pillow with an animal sketch. A felting needle lies nearby on the pillow. Learning how to needle felt with confidence is the hardest part, but the results are rewarding.
A wooden handle needle punch tool with three needles inserted into beige burlap fabric, which is sprawled on a white surface, alongside a single metal needle.
A person shapes a wool craft at a table filled with colorful wool balls and gourds, referencing a tutorial on a tablet. a sign reads "woolshire fern crafts.

Needle Felting Patterns

If you love working from a pattern then you will love my inspiring needle felting patterns. There are 60 to choose from and you can instantly download and get started straight away. Website and Etsy Shop.

Find Out Moure About Needle Felting

Here are some useful guides and tutorials:

Happy creating and please watch those fingers, not Netflix.

A person holds a small, fluffy stuffed lamb with a smiling face and curly fleece against a blurry pink background. the toy's adorable design features distinct, cheerful eyes and tiny limbs.

Est. 2013
© 2013 Lincolnshire Fenn Crafts

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27 Comments

  1. Thankyou for this easy to understand. Trying to look at the needles with a naked eye to see which needle you need to use is a bit tricky sometimes.

    1. Hi Gail
      I have just added this which should help you identify sizes.
      Hope it helps.
      Sandy 🙂

      What If I Have Needles And Don’t Know The Size?

      Here is my quick test to determine the size of your felting needles:

      1 If your needle tip is super bendy, it will be a fine needle – probably 40 gauge – used for finishing touches and finer details; it will break easily. This needle is sometimes referred to as ‘small’.

      2 If there is a slight bend at the tip but with resistance, this is usually a size 38, my favourite, and a good all-rounder; it completes most projects from start to finish. This needle is sometimes referred to as ‘medium’.

      3 If it is really firm with little to no bend then it will likely be a 36 gauge which is used for starting projects and flat felting. This needle is sometimes referred to as ‘large’.

  2. Ive been a felter for about 5 years. I really got into NANO felting. But got bored and put it up.. i picked up the wool again, started looking at all the new needle shapes, and was lost. This has really helped me out. Thankyou, and yes your humor makes it much easier to watch and listen to. God bless for young women like you.

  3. I’ve roamed all over the internet and viewed dozens of video tutorials but return to you time and time again. Your posts are informative, easy to follow and laced with much needed (and appreciated) humour. I took up needle felting at the first lockdown and have become totally addicted. Not very good yet but am persevering with your help! I’ve followed your beginners tutorials and have made a mouse, a seal and some foxes…..we have foxes in the garden at night…
    Thank you so much for your excellent site.
    I’ll be back !!!

    1. I have a question that you might be able to answer? When ordering kits and or wool, they all seem to come with one stick of hot glue, what in the world is this used for? Does it rub off the extra wool hair fibers on a finished project, or for curling the wool? These were my guesses, I’m totally new at this and have created one thing so far (one of the gorillaz characters). For my first, I was happy with it, it’s not perfect but it was good enough to keep me wanting to do more. Started my second, Link from Zelda.

  4. How often do you change needles? (thinking as a machine sewer who changes needles with each project because they get dull.)

  5. Awesome information. I’m new to this techniques….will start first project today. Bought all materials but been afraid to start for fear messing up…Lol

  6. I’ve got a stack of needles from China, not sure on the sizes or type of any of them as they just came in a bundle, yikes

  7. I like the way you explain things. I’ve tried to follow others but they are always so wordy with no humor whatsoever. I get bored and move on. I adore your kits. I have two waiting for me to get back into the felting swing. Trudy

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