New: Sewing Machine Essentials - 6-week online workshop starting March 31. Spots limited.

Free Standard Shipping in Canada

On orders over $150

Authorized Bernina Dealer

We sell sewing machines, serger and accessories

Community Newsletter Sign Up

Be the first to receive our updates

Omnigrip : Ruler : 3 1/2" Square : Non-Slip - the workroom

Omnigrip : Ruler : 3 1/2" Square : Non-Slip - the workroom

Omnigrip : Ruler : 3 1/2" Square : Non-Slip

$14.00 CAD

By Omnigrid

Ruler includes a 1/2in seam allowance, making it the perfect size template for 3in finished squares.
Useful for cutting and trimming miniatures and checking seam allowances, it is handy to tuck into any sewing kit or basket.

the workroom / kona colour society

Curated by The Workroom · Sprucedale, ON

Kona Colour Society

Turn your inspiration
into a palette you can sew with.

Upload any image — a sunrise, a painting, a handful of wildflowers — and we'll match it to real Kona Cotton colours you can shop.

✦

Drop your image here

or click to browse

Click to change image

Colours to extract

Colours 8

Click the image to pick an anchor colour

✦

Click colours to build your palette

8 colours matched to Kona Cotton

Give it a name to save it to your history

Your palette at a glance

Click colours to include or exclude 0 selected

Bundles you might love

From our shop — curated bundles that share colours with your palette

Your saved palettes 0 palettes ▼

Swap colour

Similar Kona colours — click any to swap

Finding your colours...

What's New At the workroom

View all

Quick buy

Kona Colour Society : Nocturne Solids Bundle : 15pcs

From $54.00 CAD $60.00 Sale

the workroom : Solids Bundle : Prism - the workroom

Quick buy

the workroom : Solids Bundle : Prism

From $36.00 CAD $40.00 Sale

the workroom : Solids Bundle : Sweethearts - the workroom

Quick buy

the workroom : Solids Bundle : Sweethearts

From $36.00 CAD $40.00 Sale

the workroom : Karyn's Solids Bundle : Popsicle - the workroom

Quick buy

the workroom : Karyn's Solids Bundle : Popsicle

From $36.00 CAD $40.00 Sale

Sewing Machine Essentials : Virtual Workshop : Starts Tuesday March 31, 7 - 8pm for 6 weeks - the workroom

Quick buy

Sewing Machine Essentials : Virtual Workshop : Starts Tuesday March 31, 7-8pm for 6 weeks

Harlene Dungarees : Virtual Workshop : starts Thursday March 12th, 6 - 8pm for 6 weeks - the workroom

Quick buy

Harlene Dungarees : Virtual Workshop : starts Thursday March 12th, 6-8pm for 6 weeks

The Structured Sweatshirt : Virtual Workshop : Starts Saturday March 28, 9 - 11am for 3 weeks - the workroom

Quick buy

The Structured Sweatshirt : Virtual Workshop : Starts Saturday March 28, 9-11am for 3 weeks

Community Sew - Along : The Merchant & Mills Weekender Tote - the workroom

Quick buy

Community Sew-Along : The Merchant & Mills Weekender Tote

Handmade Wardrobe Essentials : Virtual Workshop · Saturday April 18 & 25, 9 - 11am - the workroom

Quick buy

Handmade Wardrobe Essentials : Virtual Workshop · Saturday April 18 & 25, 9-11am

Nova Coat : Virtual Workshop : Starts Thursday April 23, 6 - 8pm for 4 weeks - the workroom

Quick buy

Nova Coat : Virtual Workshop : Starts Thursday April 23, 6-8pm for 4 weeks

Esme Cardigan : Virtual Workshop : Starts Tuesday May 12, 6 - 8pm for 3 weeks - the workroom

Quick buy

Esme Cardigan : Virtual Workshop : Starts Tuesday May 12, 6-8pm for 3 weeks

March Scraps Challenge - the workroom

Quick buy

March Scraps Challenge

Kona Colour Society : Glow Solids Bundle - the workroom

Quick buy

Kona Colour Society : Glow Solids Bundle

From $54.00 CAD $60.00 Sale

Uppercase Magazine : Issue 68 - the workroom

Quick buy

Uppercase Magazine : Issue 68

Merchant & Mills : Francli Weekender Bag Pattern PDF - the workroom

Quick buy

Merchant & Mills : Francli Weekender Bag Pattern PDF

From $20.00 CAD

2026 Challenge Series : A Year of Intentional Making - the workroom

Quick buy

2026 Challenge Series : A Year of Intentional Making

The Button Dept. : Button Match Service - the workroom

Quick buy

The Button Dept. : Button Match Service

From $10.00 CAD

PDF Sewing Pattern Printing : Ontario, Canada (A0 Wide Format) - the workroom

Quick buy

PDF Sewing Pattern Printing : Ontario, Canada (A0 Wide Format)

Merchant & Mills : Poppy Red 10oz Organic Denim - the workroom

Quick buy

Merchant & Mills : Poppy Red 10oz Organic Denim

Merchant & Mills : Jade Green 10oz Organic Denim - the workroom

Quick buy

Merchant & Mills : Jade Green 10oz Organic Denim

$52.00 CAD Sold Out

Membership

FAQ

Contact Us

Gift cards

the workroom is a place for people to make, learn and share.

Sprucedale maker space/shop for fabric, notions, patterns, books, sewing machines, inspiration, and project cheerleading.

We acknowledge and deeply appreciate that the land on which we now live and operate in Sprucedale, within the Almaguin Highlands, is part of the traditional and ancestral territory of many Indigenous peoples, including the Anishinaabeg, specifically the Ojibwe and Algonquin nations.

This region is situated within the lands covered by the Robinson-Huron Treaty of 1850, and remains home to many diverse First Nations, Inuit, and Métis peoples.

We honour the enduring presence and stewardship of Indigenous communities - past, present, and future and we commit to ongoing learning, respect, and relationship with the land and its original caretakers.

© 2026 the workroom. Powered by Shopify

{"id":4470345531452,"title":"Omnigrip : Ruler : 3 1\/2\" Square : Non-Slip","handle":"omnigrip-ruler-3-1-2-square-non-slip","description":"\u003cp\u003eRuler includes a 1\/2in seam allowance, making it the perfect size template for 3in finished squares. \u003cbr\u003eUseful for cutting and trimming miniatures and checking seam allowances, it is handy to tuck into any sewing kit or basket. \u003c\/p\u003e","published_at":"2020-03-02T18:32:07-05:00","created_at":"2020-03-02T18:32:07-05:00","vendor":"Omnigrid","type":"Notions - Rulers","tags":["ruler"],"price":1400,"price_min":1400,"price_max":1400,"available":false,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":31859048611900,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"OMRN35","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"Omnigrip : Ruler : 3 1\/2\" Square : Non-Slip","public_title":null,"options":["Default Title"],"price":1400,"weight":30,"compare_at_price":null,"inventory_management":"shopify","barcode":"762511500355","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/theworkroom.ca\/cdn\/shop\/products\/omnigrip-ruler-3-12-square-non-slip-495733.jpg?v=1762526367","\/\/theworkroom.ca\/cdn\/shop\/products\/319f39d99a8e72e81b5d996f4fc96af7.png?v=1633203111"],"featured_image":"\/\/theworkroom.ca\/cdn\/shop\/products\/omnigrip-ruler-3-12-square-non-slip-495733.jpg?v=1762526367","options":["Title"],"media":[{"alt":"Omnigrip : Ruler : 3 1\/2\" Square : Non-Slip - the workroom","id":23072005062839,"position":1,"preview_image":{"aspect_ratio":1.0,"height":512,"width":512,"src":"\/\/theworkroom.ca\/cdn\/shop\/products\/omnigrip-ruler-3-12-square-non-slip-495733.jpg?v=1762526367"},"aspect_ratio":1.0,"height":512,"media_type":"image","src":"\/\/theworkroom.ca\/cdn\/shop\/products\/omnigrip-ruler-3-12-square-non-slip-495733.jpg?v=1762526367","width":512},{"alt":null,"id":23187446956215,"position":2,"preview_image":{"aspect_ratio":1.0,"height":512,"width":512,"src":"\/\/theworkroom.ca\/cdn\/shop\/products\/319f39d99a8e72e81b5d996f4fc96af7.png?v=1633203111"},"aspect_ratio":1.0,"height":512,"media_type":"image","src":"\/\/theworkroom.ca\/cdn\/shop\/products\/319f39d99a8e72e81b5d996f4fc96af7.png?v=1633203111","width":512}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003eRuler includes a 1\/2in seam allowance, making it the perfect size template for 3in finished squares. \u003cbr\u003eUseful for cutting and trimming miniatures and checking seam allowances, it is handy to tuck into any sewing kit or basket. \u003c\/p\u003e"}