How to choose Thread for a Sewing Project - Quick Tip #2

How to Choose Sewing Thread

Knowing which thread to choose for your sewing project is a key part of a successful outcome. Thread that is too small or weak can result in a project that falls apart; thread too wide or coarse can split or tear the fabric. Here is some guidance on choosing the correct sewing thread for your sewing project.


  1. Identify which type of sewing you are undertaking.Some types of sewing are more complex in the requirements for threads because they require decorative as well as practical sewing techniques. Other types are very straightforward, such as simple sewing, which is best performed with commonplace, simple cotton or rayon threads. The general types of sewing include:
  2. Learn the main types of sewing thread.They are:
    • Cotton threads
    • Nylon/rayon threads (including invisible thread)
    • Silk threads (and silk ribbons)
    • Wool threads
    • Metallic threads
    • Bobbin threads (for machine sewing)
    • Designer threads (mixed threads made by combining different types of threads, e.g., cottons with rayon with silk, etc.)
  3. Consider the qualities of sewing thread.Knowing the properties of the threads will help you to decide the usefulness and desirability of using them for your specific project. The following list with explanations will help you choose a thread that is suitable for your project:
    • Cotton thread: The usual cotton thread found on reels in most haberdashery and craft stores is ideal for basic sewing. Most cotton threads are mercerized, a coating that lets the dye take more easily and results in a lustrous appearance. This cotton has limitations, however, as it has no "give" and can break if used on fluid fabrics, such as stretch knit fabric. On the plus side, cotton is ideal for delicate fabrics and projects, such as lingerie and sheer fabrics.
      • All-purpose cotton - a medium thickness cotton (size 50) is suitable for sewing a wide range of projects using lightweight to medium cotton, linen and rayon fabrics.
      • Stranded cotton - this is made of six strands that have been woven together loosely. These are usually used in embroidery and are often best unwound prior to use or the end result will be too thick, although with wider weave fabrics, using all strands can sometimes be very effective.
      • Coton perlé - this thread cannot be divided and is used in embroidery projects to produce a neat sheen.
      • Cotton à broder - an embroidery cotton in varying weights. It has a smooth quality.
      • Tatting thread - not a separate thread as such, but the type of cotton required for tatting is very specialized. It should be highly mercerized and tightly twisted, so that it is very firm and smooth.
      • Flower thread - this has a matte sheen and is soft. This thread is ideal for embroidery projects that require a rustic, old-fashioned look, particularly samplers on fine linen. It is only suitable for fabric with a small count.
      • Quilting thread - this is all-cotton thread that is coated for ease of movement through quilt fabric and batting. Obviously, this is ideal for quilting projects.
    • Polyester threads: These are strong threads that have excellent give for sewing projects. They tend to come in an all-purpose weight (size 50); they often have a wax or silicone finish that allows the thread to slip through fabric with little friction. This is suitable for most machine and hand sewing projects. This thread is suitable for fabrics with stretch in them and is especially good for woven synthetics, knits and stretch fabrics. The appearance of this thread will be waxy or shiny, not matte like plain cotton.
      • All-purpose thread - this is cotton-wrapped polyester thread and is widely available for sewing. This is suitable for using with most fabrics and is cheap and easily obtainable. It is not, however, a good thread to use for embroidery projects.
      • Invisible thread - this is similar to fishing line. It's strong and it's invisible, making it ideal for projects where you need the sewing to be strongly kept in place and hidden at the same time.
    • Heavy duty: Heavy duty thread is ideal for heavy duty fabrics, such as those used in soft furnishings like upholstery and window dressings, vinyl, and coat fabrics. This is usually around size 40 and can be made from polyester, cotton-wrapped polyester, or cotton.
    • Rayon threads: Rayon embroidery thread works well to create flat stitches where cotton embroidery thread might stand too high.
    • Nylon threads: This is a strong thread that is suitable for using on light to medium weight synthetic fabrics. It is a fine thread, usually in size A.
    • Silk threads: Silk is a fine thread that is ideal for a range of fabrics, although silk is often reserved for embroidery work, same for silk ribbon. This strong thread is ideal for sewing on silk and wool, and for for basting all fabrics. The benefit is that silk threads do not leave holes and it is very flexible. An excellent tailoring thread.
      • Silk floss - this thread has a high sheen. It is also known as Japanese silk. It comes untwisted and can be used as it is, or divided to make even finer stitches. This thread is suitable for embroidery projects and for using on silk fabric projects. Although strong, it is delicate to work with, so it is vital to have trimmed fingernails to avoid catching and tearing.
      • Twisted silk - this thread consists of several strands of silk twisted together; again it is ideal for embroidery and can be used as it is, or separated into smaller threads.
      • Stranded silk - these threads have a sparkling look and can be separated into strands for sewing in embroidery projects.
      • Silk ribbon - silk ribbon is used for silk ribbon embroidery, both as projects in their own right, and for decorative projects such as on handbags, tops, skirts, etc. and for hair accessories.
    • Wool threads: Wool threads tend to be used for embroidery projects and for blankets (using blanket stitch). Wool works best with heavy fabrics, such as wool, or canvas.
      • Persian wool - Persian wool consists of three strands. You can use the three strands together or separate the threads to use singly. Whether or not you separate the threads will depend on the project and the thickness of the fabric being sewn.
      • Tapestry wool - this wool is not as thick as the Persian wool. It is not dividable.
      • Crewel wool - this is the finest of the wool threads. It is ideal for crewel embroidery projects. While it is fine, you can weave it into a thicker thread by twisting with more threads.
    • Machine threads: These are the threads inserted into a sewing machine.
      • Bobbin threads - this is an affordable thread that goes on the bobbin; it is commonplace for use on sewing machines and is used for a wide variety of general sewing projects made on the sewing machine.
      • Variegated thread - these threads are dyed different shades, the variegation repeating along the length of the thread in an even manner. Suitable generally for embroidery projects or colorful sewing projects, such as crazy quilt jackets, etc.
    • Metallic threads: Metallic threads are used for goldwork embroidery and for embellishment on items such as handbags. The colors are gold, silver, and copper.
      • Purl thread - this thread is hollow. Also twist thread and pearl purl
      • Japan thread - this is a very fine metallic thread that usually requires two threads used at the same time.
  4. Select sewing thread according to the right color.Once you have decided which type and strength of thread is suitable for your project, you will need to match its color. This is where it is a really good idea to purchase the entire quantity of thread in the color you are using to ensure that you keep the same batch color quality throughout the sewing project, especially in the case of embroidery. If you cannot find an exact color match, select a color of thread one to two shades darker than the fabric color to blend in. Light thread will stand out much more.
  5. Consult the sewing instructions.It is important to read the instructions of any sewing pattern or embroidery project from beginning to end prior to undertaking a project. The pattern or instructions should tell you what thread it recommends. It is a good idea to try to match the recommendation exactly, or as closely as possible, to ensure the best outcome for the project. When you are more experienced, you will be able to make thread substitutes with the full understanding of the end results.
  6. Purchase quality thread.Cheap thread is cheap thread and will not last. Quality thread costs more but is definitely worth it to ensure the quality and durability of your project in the long-run, as well as making the stitching process easier and more enjoyable, especially in the case of embroidering.

Community Q&A

  • Question
    Does bobbin thread come in different materials?
    wikiHow Contributor
    Community Answer
    The bobbin thread should always be the same thread as the main thread. Fill your bobbin with the same thread you are going to sew with.
  • Question
    Which thread should be used to sew denim?
    Community Answer
    Tex-70 or Tex-90.
  • Question
    What quality thread should I use to sew expensive light wool cashmere, or silk fabric?
    wikiHow Contributor
    Community Answer
    Silk thread. It is made from natural fibers and is strong and has a sheen. It comes in three weights; use lightweight silk thread for fragile fabrics, medium weight for basting and hand sewing, and heavy weight for tailoring buttonholes and hand or machine topstitching.
  • Question
    What's the best type of thread for sewing clothes?
    Amelia Ashton
    Community Answer
    It all depends on the material of the fabric you're using to sew the clothing. Cotton is the most common type of thread used, though.
  • Question
    What kind of thread would I use to alter a pair of pants that is made of mainly polyester and rayon?
    wikiHow Contributor
    Community Answer
    Use polyester thread.
  • Question
    What type of thread should be used when hemming stretch jeans?
    Community Answer
    You can use normal thread, but use a stretch stitch or keep the stitches a little looser than normal.
  • Question
    Can I use the same bobbin thread for machine embroidery that I use for regular machine sewing?
    Community Answer
    Not necessarily. You would want to use a thread with a high tensile strength, which will allow it to withstand rapid direction changes, dragging, and tension. For the best stitch appearance, the weight and characteristics (linting, shrinkage, texture) of the thread in the bobbin should be the same as the top thread.
  • Question
    What is old type "carpet thread" called now? I can't seem to find it.
    Community Answer
    HD upholstery thread, or Tex-135.
  • Question
    What thread do I use for outdoor canvas?
    Community Answer
    Bonded Nylon would work nicely, the strength would depend on the weight of your canvas and the size of your needle. Use Tex-70 for 6 oz. canvas (16 or 18 needle), Tex-90 for 8 oz. canvas (18 or 20 needle), and Tex-135 for 10 oz. canvas (20 or 22 needle).
  • Question
    What is the best thread for sewing bags (grocery bags, tote bags, etc.)?
    wikiHow Contributor
    Community Answer
    Heavy duty quilting thread. If sewing on machine, make sure you use a larger needle so that it doesn't break.
Unanswered Questions
  • Where can I find samples of many different colors for clothing repair by hand?
  • I am sewing a 3333lb safety strap and climbing leads, under the existing straps of my outdoor sling bag, making a built-in climbing repelling harness. Should I use kexlar thread? Is there anything stronger I can use?
  • Will my medium duty sewing machine sew vinyl?
  • What is the best type of thread to alter a dance leotard?
  • What's the best thread to use for hand sewing a heavy duty zipper into a leather bag?
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  • Mercerize means that the thread has been treated with a caustic alkali to impart a high sheen to thread, that resembles silk in its look. Mercerized thread is very easy to work with, as it slides easily through fabric, through needles and along tatting shuttles.
  • The higher the number of a thread, the finer (thinner) it is.
  • Common embroidery thread brands are DMC and Anchor. It is important to know the brand for some embroidery projects because many modern embroidery charts include instructions that involve a particular brand's flosses or threads. You don't have to go with their suggestion but it will help to achieve the same or very similar outcome as the pattern. If you want to make brand substitutes, though, consult thread conversion charts on the internet.
  • Always remember that stitch size will determine the number of threads you require when you are thinking about splitting strands, or adding strands. Consult the instructions if in doubt. In addition, the number of fabric threads that you cross will also impact the type and thickness of thread used; for example, in cross stitch, the more fabric threads crossed, the more fabric that remains exposed, whereas tighter stitches do not reveal as much fabric underneath. It all depends on the appearance that is desired at the end.
  • Quality craft stories, haberdashery stores, online sewing stores, etc., will all offer an excellent range of threads. Online auctions can also be a wonderful source for unwanted threads.
  • Always check that thread placed in your sewing machine says that it is suitable for use in sewing machines.

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Date: 13.12.2018, 17:57 / Views: 73185