What is a Shedding Device?

The Mirrix Shedding Device can seem a puzzling contraption to those unfamiliar with weaving. Today, I hope to clear up what a shedding device is and why you might want one.


The Mirrix Shedding Device

Called: Shedding Device
Not Called: Shredder, Shredding Device, Shedder

Shedding devices are devices used to lift warps in order to pass fiber or beads through them more easily. The space between the warps is called the SHED, which is where the term SHEDding device comes from.

On a Mirrix shedding device, when you change the position of the handle, the shedding device shifts position and opposite sets of warps are raised, securing your beads or weft between the warp threads. The wooden clips hold your shedding device on the loom, but also serve to hold your warping bar in place when warping your loom (and before you install the shedding device).

shedding device

By changing the position of the shedding device using the handle, you change which warp threads are raised or lowered

When weaving tapestry, if you do not use the shedding device, you must weave each piece of fiber under and over the warp threads.

photo copy 3

By using the shedding device, you can lift half of your warp threads all at the same time, so instead of weaving over and under, you can just place your weft (the thread you are using) between the raised and lowered warp threads.

shedding device

The shedding device is attached to the warp threads with heddles. These heddles pull up on the correct warp threads when the shedding device is engaged.


The shedding device engaged in one direction, picking up half the warp threads.

When weaving beads with the shedding device, you string up a row of beads and then place them between the raised and lowered warp threads. Then you change the position of the shedding device, securing those beads between the warp threads.

bead weaving

bead weaving

On a Mirrix Loom, using the shedding device is recommended for tapestry weaving as it makes the process much faster and easier. For combining beads and fiber, a shedding device is also very useful. For beads, both the traditional bead weaving method of placing your beads behind your warp threads and then sewing through and the method using the shedding device and placing the beads between raised and lowered warp threads work. The method using the shedding device takes a little more time to set up, but once you get the hang of it it’s a fast and fun way to weave beads!

Do you still have questions about the Mirrix shedding device? Ask in the comments!


2 thoughts on “What is a Shedding Device?

  1. Hi I would like to try one of your Looms however I do want to make beading cuff as well fiber items like placemats, blankets and perhaps try a wall hanging. I knit which is why I want to loom. I have so much yarn I thought I might be able to use your looms to make sections for quilt or blankets. I know this is a alot to ask. If this a possibility what loom would you suggest? Thank you for you time. Have a great day. Sheri Whiteley

    • Sheri-

      Our looms are primarily for bead and tapestry weaving, so they may not suited for quilts or blankets. That said, you can weave things like rag rugs on a Mirrix so it may be possible depending on what exactly you’re thinking of doing. Except for our smallest two looms, all our looms are pretty much the same except for size. You can compare the sizes and functionality of all our looms here: http://www.mirrixlooms.com/comparisoncharts.html. Feel free to email me directly (elena@mirrixlooms.com) if you need more help deciding. You also may want to check out our newly redesigned Loom Basics Guide: http://www.mirrixlooms.com/free/loombasicsguide.pdf. -Elena

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