Quick Straight Ruler vs Quick Curve Ruler: Key Differences
By Sew Kind of Wonderful | Published: 2026-10-21
Category: Comparisons
Compare the Sew Kind of Wonderful Quick Straight Ruler and Quick Curve Ruler to find which quilting ruler fits your project needs and cutting style.
Quick answer
Choose the Quick Straight Ruler for precise straight-line piecing and everyday cutting, or the Quick Curve Ruler if your patterns rely on curved seams and block squaring-up.
Design and intended use
The Quick Straight Ruler is a 6" x 13" piecing ruler with an angled straight slot designed for easily cutting fabric strips and straight shapes. Its square dot grids within the inch markings make it practical for general measuring and everyday ruler tasks.
The Quick Curve Ruler is 7" x 12" and 1/8" thick, built specifically for cutting curved shapes and squaring up blocks after piecing. It includes a curved cut-out slot for a rotary cutter, and Sew Kind of Wonderful recommends using a 45mm rotary cutter with it.
Pattern compatibility and versatility
The Quick Straight Ruler supports multiple patterns that use its unique straight slot design, making it a versatile addition for quilters who work with various Sew Kind of Wonderful patterns. It doubles as an everyday ruler thanks to its square dot grid.
The Quick Curve Ruler is designed exclusively for use with Sew Kind of Wonderful QCR Patterns. If your project library centers on curved piecing, this ruler is essential, but it offers less utility for straight-line cutting tasks.
Size and storage differences
Both rulers are acrylic, but the Quick Curve Ruler includes a hang hole for easy storage. The Quick Straight Ruler does not mention a hang hole, so consider your storage setup if that matters to you.
Trade-offs to consider
- Cutting style: The Quick Straight Ruler excels at straight-line piecing and general cutting. The Quick Curve Ruler is purpose-built for curved shapes and block squaring.
- Pattern library: The Quick Straight Ruler works with multiple patterns and everyday tasks. The Quick Curve Ruler is limited to Sew Kind of Wonderful QCR Patterns. Check your pattern collection before choosing.
- Everyday versatility: The Quick Straight Ruler doubles as a standard ruler thanks to its square dot grid. The Quick Curve Ruler is specialized and less suited for straight cuts. If you need one ruler for everything, the Quick Straight Ruler is more flexible.
- Storage: The Quick Curve Ruler has a hang hole for easy wall storage. The Quick Straight Ruler does not include a hang hole. Consider where you will store your ruler.
Product facts at a glance
- Quick Straight Ruler™: The Quick Straight Ruler is 6" x 13" with an angled straight slot and square dot grids within the inch markings. This design lets you cut straight fabric strips accurately while also serving as a general-purpose ruler for everyday measuring.

Quick Straight Ruler™ - Quick Curve Ruler™: The Quick Curve Ruler is 7" x 12" and 1/8" thick, with a curved cut-out slot for a rotary cutter, and includes a hang hole for storage. The curved slot enables precise curved cuts and block squaring, but the ruler is specialized for Sew Kind of Wonderful QCR patterns rather than general straight cutting.

Quick Curve Ruler™
Which ruler fits your quilting style?
Best for
- Quilters who primarily sew straight seams and want a ruler that also works for general measuring
- Those following multiple Sew Kind of Wonderful patterns that use the straight slot design
Not ideal for
- Quilters focused on curved piecing projects that require the QCR pattern system
- Anyone who needs a dedicated curved-cutting tool with a hang hole for storage

