Triangles and Squares Quilt Pattern

If you’re looking for a modern yet simple quilt project that plays with classic shapes, the Triangles and Squares Quilt Pattern is a beautiful choice. This design brings together half-square triangles, triangle-in-a-square blocks, and printed squares for a dynamic layout that’s beginner-friendly but visually striking.

This quilt is perfect for quilters who enjoy working with both structured geometry and open-ended creativity. The combination of simple shapes—squares, half-square triangles, and triangle-in-a-square blocks offers a great opportunity to explore color play and contrast. Whether you’re a beginner looking for a manageable layout or an experienced quilter hoping to showcase your fabric stash, this pattern provides a flexible framework with stunning visual results.

A Balanced Design of Geometry & Simplicity

This quilt uses a layout of 9 blocks across and 11 blocks down, creating a total of 99 blocks. The alternating placement of the triangle blocks and print squares forms a subtle geometric rhythm, giving the quilt both structure and softness. Whether you’re using bold solids, soft pastels, or your favorite prints, this pattern will highlight your fabrics beautifully.

Triangles and Squares Quilt Pattern

Quilt Construction Details

• Finished Quilt Size: 54” x 66”

Block Breakdown

Half Square Triangles (HSTs):
Make 40 HSTs measuring 6″ finished (6.5″ with seam allowances). You can use your preferred method — traditional two-at-a-time, four-at-a-time, or using a specialty cutting tool like the AccuQuilt GO.

Triangle in a Square Blocks:
Make 10 blocks that finish at 6″. These can be easily pieced using Tri-Recs Rulers or die-cut with the AccuQuilt GO system if you have one. These striking blocks add visual direction and interest to the quilt layout.

Print Squares:
Cut 49 squares from your feature print, each measuring 6.5″ x 6.5″. These squares add contrast and help balance the pieced blocks.

Assembly Instructions

Layout Your Quilt Top:
Refer to the quilt photo (insert image or PDF link here). Lay out your blocks in a 9 x 11 grid. Balance your triangle blocks evenly throughout the quilt top.

Sew Blocks Together:
Join the blocks row by row, pressing seams as desired (open or to one side). Once all rows are complete, sew them together to finish your quilt top.

Fabric Requirements

I recommend starting with 2.5 yards each of three main fabrics. Here’s an approximate breakdown based on this quilt’s composition:

• 2 yards of a light background fabric – for the HSTs and background of triangle-in-a-square blocks

• 2 yards of blue or contrasting color – for the triangle shapes and quilt binding

• 2.25 yards of a printed fabric – for the 49 squares and accents

Note: Your total yardage may vary depending on the cutting methods and whether you’re using scraps or pre-cuts.

📥 Download the Free PDF Pattern Below

👉 Download Triangles and Squares Quilt Pattern

The Triangles and Squares Quilt Pattern is an ideal mix of structure and spontaneity you can follow the layout exactly or shuffle your blocks to make it your own. Whether you’re using up your fabric stash or cutting from coordinated yardage, this quilt is sure to become a favorite.