The Quilters Select 10.5" x 10.5" Non-Slip Ruler is a large square quilting ruler with Quilters Select’s exclusive non-slip coating. The 10.5" square is the standard for squaring up and trimming 10" finished quilt blocks — the most common block size in modern quilting. The non-slip coating ensures the ruler stays precisely in place during trimming.
Product Details
- Size: 10.5" x 10.5" square
- Feature: Non-Slip coating for stable accurate cutting
- Brand: Quilters Select
- Use: Squaring and trimming 10" finished blocks, cutting large squares, and block precision work
Frequently Asked Questions
- Why is 10.5" the standard block-squaring ruler size?
- Most 10" finished quilt blocks are trimmed to 10.5" square (adding the 0.25" seam allowance for a half-inch total). The 10.5" square ruler places precisely at block edges for trimming in a single step without measuring. It’s the standard tool for keeping blocks consistently sized.
- Does the non-slip coating affect ruler placement?
- The non-slip coating improves accuracy by preventing the ruler from shifting during trimming. On blocks with inconsistent seam allowances, this grip is particularly valuable for maintaining the exact placement needed for clean, consistent trimming.
- What is the difference between the 10.5" square and the 12.5" square ruler?
- The 10.5" is for 10" finished blocks; the 12.5" is for 12" finished blocks. Having the correctly sized ruler for your common block size eliminates having to calculate or estimate placement for every block.
- Can this be used for fussy-cutting fabric squares?
- Yes — the square ruler is ideal for fussy-cutting, where you need to center a specific motif within a precise square. The non-slip coating holds the ruler on the fabric while you check centering before cutting.
- What other sizes does Quilters Select make?
- Quilters Select makes a full line of non-slip rulers in various sizes. Check the current Linda’s listing for the complete selection.

