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Monarch Illumination

Seam Guide Ruler

Seam Guide Ruler

Take the guesswork out of sewing precise seams with our Seam Guide Ruler. Designed to help you measure, align, and maintain consistent seam allowances, this compact ruler is an essential tool for quilters and sewists. Pair it with our Beam Laser Sewing Guide for an easy-to-see reference that makes accurate stitching even easier.

Available in four stylish combinations:

  • Solid Gray
  • Solid Blue
  • Gray & Yellow
  • Gray & Blue


Perfect For

Quilting, piecing, seam allowances, half-square triangles, binding, appliqué, pattern alignment, precision sewing, and everyday measuring at your sewing machine.

Regular price $10.00 USD
Regular price Sale price $10.00 USD
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  • Precise Seam Measurements

    Built-in markings make it easy to measure and check common seam allowances, including ¼" and ½", while helping you maintain consistent spacing throughout your project.

  • Needle Placement Holes

    Use the precision holes to measure the exact distance from your needle, making it easy to set and verify seam allowances from ⅛" to 2".

  • Built-In 45° Guide

    The integrated 45° line makes trimming and aligning half-square triangles and other angled pieces quick and accurate.

  • Pivot & Alignment Markings

    Built-in ¼" pivot markings help you mark corners, match points, and create accurate turns when piecing, binding, and more.

  • Perfect with the Beam

    Pair the Seam Guide Ruler with our Beam Laser Sewing Guide to create a clear visual reference for your stitching line. The Beam's cross laser and the ruler's precise measurements work together to make accurate seams easier to achieve.

  • Compact & Versatile

    Small enough to keep beside your sewing machine and versatile enough for measuring, marking, trimming, and checking small fabric pieces.