Planted Seed Designs Triangle-in-a-Square

Triangle?in?a?Square Ruler Set by Gerri Robinson – Riley Blake Designs
A precision quilting tool for fast, accurate piecing
Bring speed, accuracy, and confidence to your quilting projects with the Triangle?in?a?Square Ruler Set designed by Gerri Robinson of Planted Seed Designs for Riley Blake Designs. This high?quality acrylic ruler set is engineered to help you create Gerri’s signature Triangle?in?a?Square units with ease — perfect points, clean angles, and beautifully consistent blocks every time.
Whether you're quilting with modern prints, traditional florals, or your favorite Riley Blake collections, this ruler set streamlines construction and elevates your finished results. Ideal for beginners learning foundational units and experienced quilters who want efficiency without sacrificing precision.
Features
Designed by Gerri Robinson of Planted Seed Designs
Manufactured by Riley Blake Designs
Creates accurate Triangle?in?a?Square units
Speeds up cutting and piecing for quilts, blocks, borders, and more
Durable, clear acrylic with easy?to?read markings
Perfect for quilting, sewing, and project-based crafting
Perfect For
Quilt blocks and sampler quilts
Modern and traditional quilt patterns
Precision piecing
Coordinating with Riley Blake fabrics and designer collections
Adding accuracy and efficiency to your quilting workflow
Why Quilters Love It
This ruler set eliminates guesswork, reduces trimming time, and ensures your Triangle?in?a?Square units come out crisp, clean, and consistent — a must?have tool for quilters who value accuracy and speed.
From MountainHighFabrics
Every order is cut fresh from the bolt in our smoke?free, pet?friendly studio (home to one very loved standard poodle). We ship quickly, package with care, and curate designer collections that inspire creativity and joy.
If you're collecting the full line, coordinating prints from the Awakening collection are also available in our shop.
Shop confidently with Mountain High Printing—your trusted source for designer fabrics, fast shipping, and personal customer care. Whether you’re stocking up for a new quilt or need just the right pop of color, Confetti Cottons deliver unbeatable style and substance.
Click "Add to Cart" and start your next quilt today! 
Makes a great gift for crafters and quilters-or for yourself! 
Ships quickly and packaged with care from our family-run embroidery, printing, fabric & notions shop!