Aurifil Colour Builders Thread Club

This is a capsule of 12 mini-collections, each containing three large spools of our high quality cotton thread — a warm, a medium, and a dark.

Love new threads? We will send you 3 new delicious shades each month

You will also get a FREE GIFT each month!

with the 50wt threads receive a Block of the Month pattern
with the 40wt threads receive a new machine embroidery pattern to try each month

Choose from 2 different weight threads so you get the thread that is most useful to you, in a range of beautiful shades to help you build your stash and discover new colours


We ran our own version last year but for 2021 we loved Aurifils selection so much that we just had to run it! Be aware that there is some overlap between last years shades and this years, so if you were part of our thread club in 2020 there are several 200m spools you received that you will now get in 1300m

The Aurifil Colour Builders club consists of 3 large spools, 1300 metres each, and you get to CHOOSE which weight you get! Select either 40wt or 50wt thread.

Here’s what inspired Aurifil’s Colour choices for this year

For 2021, we chose to shift our focus to an incredibly worthy cause that falls in line with our goal to increase Aurifil’s sustainability and positive environmental impact — Endangered Species. We’ve drawn our color inspiration from 12 magnificent animals, currently in dire need of attention, advocacy, and compassion. We are dedicated to highlighting their stories, helping to educate on their struggles, and working to create valuable change via awareness and fundraising. To help achieve these goals, we are collaborating with Earth League International and are looking forward to a strong and effective partnership.

For subscription holders, we’ll offer a foundation paper pieced BOM that can be finished as 12 individual mini quilts or pieced together to create a full quilt AND a series of 12 machine embroidery patterns. Each block or pattern serves as a tribute to an endangered species. We’re excited to see these projects come to life!

Feeling inspired? Want to get involved? Make sure to sign up below. These collections are available to order now, with first bundles going out in January.

Seeing this after January? You can still join in throughout the year.


So what’s the difference between 40wt and 50wt?

40wt Cotton Thread

“Aurifil’s 100% Cotton 40wt thread is available in all 270 of our Cotton colors and is wound on a green spool. Because of its slightly thicker weight, it is perfect for use with sewing bags, toys or dolls, garments, or when a more defined topstitching or quilting pattern is desired. It is also terrific for Single, Double or Triple Strand Cross Stitch, Hand Piecing, Bobbin and Machine Lace, Machine Applique, Machine Embroidery, Edge-to-Edge, Pantographs, and Custom Longarm Quilting.”

Needle Recommendations:

  • 80/12 Microtex/Sharp, Universal, or Denim Needle (40wt or 50wt in the bobbin)
  • 90/14 or 75/11 Quilting Needle (40wt or 50wt in the bobbin)
  • 3.5 or 4.0 Longarm Quilting Needle (50wt in the bobbin)

50wt Cotton Thread

“Aurifil’s 50wt thread is our most versatile and most popular Cotton thread. It is available in all 270 of our Cotton colours, and is wound on our iconic orange spool. The 50wt is strong and thin, and results in remarkably flat and crisp seams. While it is wonderful for piecing, subtle quilting & topstitching, and English Paper Piecing it also works incredibly well for Needle Turn Applique, Bobbin and Machine Lace, Machine Applique (Straight Stitch, ZigZag, Blind Hem and Blanket Stitch,) Machine Embroidery, Dense Machine Quilting, Subtle Machine and Longarm Quilting, Basting, Whole Cloth and Micro Quilting, and Dense Background Designs.”

Needle Recommendations:

  • 80/12 Microtex/Sharp, Universal, Quilting, or Denim Needles (50wt in the bobbin)
  • 4.0 Longarm Needle (50wt in the bobbin)

**please note choosing your preferred weight means all your thread bundles will be that weight for the year, we will have extras though so if you would like an additional one in the other weight we can help you out**

I’m in! How do I sign up?


Choose which option suits you best and select that one. You can choose between 40wt and 50wt bundle OR opt for both. You can choose between having your threads delivered or picking them up instore.

Please note that whichever option you choose, make sure to select Click and Collect when you get to checkout. Anyone who has opted for delivery already has the shipping fee built in to their subscription plan.

***Follow the link below to select your preferred monthly plan***

Aurilfil Colour Builder 2021 Thread Club