The Creative Grids Square on Square Trim Tool (4" or 8" Finished) is a precision acrylic ruler designed to help quilters create perfect square-in-a-square blocks. It trims each round of piecing before the next is added, ensuring accurate alignment and crisp corners. This tool supports two finished block sizes: 4" and 8".

It features high-contrast black and white markings, ¼" seam guides, and Creative Grids’ exclusive non-slip grip. Ideal for economy blocks, medallion centers, and traditional square-in-a-square layouts.

What block sizes does this ruler support?

It trims square-in-a-square blocks to 4" or 8" finished sizes.

How does it improve accuracy?

You trim each round before adding the next, which keeps corners sharp and blocks square.

Is it beginner-friendly?

Yes. It simplifies square-in-a-square construction and reduces trimming errors.

Does it have non-slip features?

Yes. It includes Creative Grids’ exclusive grip technology for safe rotary cutting.

Are the markings easy to read?

Absolutely. It features black and white printed lines for visibility on any fabric.

Can I use it with rotary cutters?

Yes. It’s compatible with rotary cutters and standard cutting mats.