Harrisville Designs Loom FAQ

Harrisville Designs looms are my favorites to weave on and because of this I get a lot of questions from people who buy used ones that are in need of maintenance or restoration. I'm here to help. Some of the information may also be applied to the operation of other looms so check it out. If you have any additional questions, feel free to contact me or write/call Harrisville Designs. Their customer service is very good.


This is how the shaft pulley cord goes on the Harrisville Designs Loom. Do this for each shaft.

If you need to replace them you may order new cords from Harrisville Designs or make your own out of any sturdy, flexible material that won't stretch or break. I can't say enough about using Texsolv for this application because it eliminates the loop with crimps on the ends to attach to the shafts, but if you can't get any, you may use things like an old indoor electrical extension cord split in half, speaker wire, venetian blind cord, clothes line, high test plastic coated fishing line, etc.


This is the path for the cords that go to the 4 shaft, 4 treadle loom that doesn't have any lamms. This is known as "direct tie-up" as each shaft has its own treadle.  While you're at this, you may consider configuring them in the 1-3-2-4 configuaration suggested by Peggy Osterkamp. I can't say enough good things about it. More about that HERE.

There is a chain that goes between the treadle cords and the shaft cords. This is so that you may adjust the height of the shafts without having to get on the floor to monkey with the rope at the treadle level (where this is normally done).


The configuration for the treadle cords going to lamms is just like the ones going to the shafts except rather than going downward at the side of the castle, the cords go upwards to meet the cords coming down from the shafts.


The correct height for the shafts is when the top of the shaft is 8 to 8 1/2" from the top of the castle.


This is how the hardware for the friction brake should be configured.

If your break is missing or broken, this is a quick fix. More about this can be found HERE.


The serial number is stamped on this board on your loom. If you call or write Harrisville Designs, they will be able to tell you when your used loom was manufactured.


To determine the size of heddles to use for this or any loom, simply measure the distance between the top of the top heddle bar to the bottom of the bottom heddle bar. Harrisville Designs Looms require 10 1/2" heddles.


To determine the size of a reed to use with this or any loom, you need to know the weaving width of the loom. To find this, simply measure the distance between the inside opening of the loom's shafts. This is the widest you may weave with your loom. This is your "weaving width".  Most looms are defined by this measurement.  Harrisville Designs' Looms are defined by this measurement e.g. their 22" loom has a 22" weaving width.


Are you able to disclose the length of the harness cables? I have a 36” Model T and it didn’t come with the cables. I’m planning to use Texsolv.

Published on January 30th, 2019 - 07:01 AM, from Wisconsin

If the weaving width is 36" and f you look at the drawings I made, you can figure close to twice that for each shaft. Always plan for more. Better to have too much than not enough. Best of Luck!

Published on April 25th, 2019 - 17:29 PM, from Buckley
Alaa Mencke

Also, the shafts move wonderfully with texsolv, but they also become unbalanced when I lift them. Do you have any ideas on how I can keep them level when they raise?

Published on July 20th, 2018 - 05:41 AM, from Richmond
Joyce Brisebois

You need to put a crimp in the line where the shaft cords double back on themselves from the bottom pulley. That will keep the chord from shifting. I'll have to add that to the FAQ as it seems to be a common problem.

Published on August 27th, 2018 - 20:10 PM, from Buckley
Alaa Mencke

Hi, I replaced all the cords on the top with texsolve and would like to replace all the treadle cords with it as well. However, the slit on the lamm is so narrow that I can't get the texsolv in it. Do you have any suggestions on how to do it?

Published on July 20th, 2018 - 05:41 AM, from richmond

Terri Doria

Can you give me any info on loom #1721 MODEL A/6? It’ a 22inch floor loom. Thank-you, Terri

Published on March 15th, 2018 - 12:24 PM, from Chino valley, AZ

No, sorry. I don't have access to Harrisville Designs' records. They are very helpful. Just contact them from their website and they should be able to tell you the year it was made and to whom it was shipped. Best of Luck

Published on April 15th, 2018 - 20:20 PM, from Planet Earth
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