Riley Blake Jagged - Downloadable PDF

Riley Blake Jagged Quilt Pattern – Free Downloadable PDF by Paris and Company

The Riley Blake Jagged pattern is a free downloadable PDF designed by Paris and Company and published by Riley Blake Designs. It produces a striking 62" x 70" quilt — a generous throw or lap size — built entirely from Half Square Triangle (HST) blocks, each finishing at a crisp 6" x 6". The jagged, dynamic visual movement of the finished quilt comes from the careful, intentional placement of light and dark fabrics within those HST units, creating bold diagonal lines across the surface of the quilt. This is an excellent project for quilters who are comfortable with basic techniques and ready to sharpen their precision piecing skills.

About the Design

The Jagged quilt takes its name from the sharp, angular energy created by its Half Square Triangle layout. Rather than relying on complex piecing or intricate blocks, the pattern achieves its dramatic effect through strategic fabric placement — specifically the contrast between cream dot, vintage white solid, and a variety of assorted prints. The result is a bold, modern geometric quilt that reads as visually complex while remaining accessible to an intermediate-level quilter.

Because the design depends so heavily on fabric placement for its impact, careful attention to the quilt photo included in the pattern is essential. Paris and Company specifically instructs quilters to refer to the quilt photo when positioning cream dot and vintage white solid squares against the assorted print squares, ensuring the jagged visual effect is achieved consistently across the finished top.

Techniques Used

• Half Square Triangle (HST) construction — the foundational technique of the entire quilt. Each HST block is made by drawing a diagonal line from corner to corner on the wrong side of a lighter fabric square, pairing it right sides together with a print square, sewing a scant ¼" seam on each side of the drawn line, then cutting along the line to yield two HST units from each pair of squares.
• Squaring up blocks — after pressing, each HST block is trimmed to an exact 6½" unfinished size (finishing at 6"), which is a critical step for ensuring all blocks align accurately when the quilt top is assembled.
• Pressing seams — proper pressing after each seam is emphasized to maintain flat, accurate blocks throughout construction.
• Accurate ¼" seam allowance — all measurements in the pattern include a standard ¼" seam allowance, and sewing is done with right sides together throughout unless otherwise noted.
• Fabric placement planning — an intermediate-level skill, quilters must arrange blocks according to the quilt photo to achieve the intended jagged diagonal movement across the quilt surface.

Stitches and Sewing Methods

• Straight stitch — used throughout for all piecing, sewn at a precise ¼" seam allowance on a standard sewing machine.
• Diagonal seam construction — the hallmark of HST piecing, where stitching lines are sewn at 45° angles to the fabric grain to create triangular units.

Materials and Fabric Requirements

This pattern is designed specifically for Riley Blake Designs fabrics, and the pattern sheet references specific colorways and fabric codes. The quilt uses a carefully curated palette of coordinating prints and solids. Fabrics referenced in the pattern include:

• Blue main (C2910 Blue) — ¼ yard
• Brown main (C2910 Brown) — ¼ yard
• Cream main — 1½ yards (used for the cream dot squares that form one half of many HST units)
• Vintage white solid — used for additional HST units, providing a slightly warmer neutral contrast against the assorted prints
• Assorted print squares — a variety of coordinating Riley Blake prints, cut to 7" squares, which are paired with the cream dot and vintage white solid squares to construct the 66 HST blocks

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