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A 9 inch seam guide by Creative Grids on a white background

Creative Grids 9" Seam Guide Tool

#CGRSMN9

(7 reviews)

This .5" x 9" Creative Grids seam marking tool makes marking and sewing half square triangles, quick, easy and accurate. Mark through the slotted center with any mechanical pencil and sew 1/4" on each side of the tool. Or mark the sewing line by drawing on both outside edges of the tool. It's the perfect tool when making half-square triangle blocks. This is the perfect tool when making half-square triangles!

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5 / 5

7 reviews

5 star
7 (100%)
4 star
0 (0%)
3 star
0 (0%)
2 star
0 (0%)
1 star
0 (0%)
Summary:

This tool gets plenty of use and has quickly become a staple for a few customers, especially for tasks like half-square triangles. Many appreciate how much faster and easier it makes their process, noting that it’s far simpler than measuring and drawing multiple lines. Several describe it as working well or being extremely helpful, while one person hasn’t had a chance to try it yet.

Note: The summary above is generated automatically based on customer feedback.

Shannon H

Add this tool to your stash

Used this new tool x4 times and I dont know how I survived without it..

Posted: (07/14/2026)

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Pam M

Verified Purchase

Saves time

Much easier than measuring and drawing 3 lines! Réa like it.

Posted: (07/08/2026)

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Michelle B

Verified Purchase

Works great

Works great

Posted: (06/19/2026)

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Tamara B

Verified Purchase

Extremely helpful

Perfect for 1/2 square triangles

Posted: (04/25/2026)

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BJ

Verified Purchase

Took Guide

Not had chance to use.

Posted: (04/25/2026)

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Sara

Verified Purchase

Happy

Works well

Posted: (01/19/2026)

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Kristen

Verified Purchase

Excels

I like it

Posted: (12/10/2025)

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