Patchwork US Flag Quilt Tutorial

Modified: Nov 28, 2025 · Published: Jun 14, 2022 by Amy Smart · This post may contain affiliate links · 31 Comments

16 years ago I made my first patchwork flag quilt to hang on my wall for the summer season. Recently, I've been thinking I wanted to make an updated version in brighter colors. And since it's Flag Day (June 14) here in America it feels like the perfect day to share this tutorial. It's a super quick project and you can easily put one together before the 4^th of July, if you want to!

Patchwork American Flag Tutorial from Amy Smart

For this version I thought it would be fun to make a scrappy star option for the blue field. You can include the star, or just use blue patchwork blocks to keep things simple.

This is a great project for using scraps or pulling from your stash. It's also a great time of year to find red, white, and blue fabrics on sale.

I personally think the scrappier the better for this quilt. You can get your blocks from yardage, fat quarters, precuts or leftover scraps. If you're looking for a cohesive collection, Lori Holt's Americana of the Freedom Garden collection would work great.

First, I'll give the instructions for making a simple patchwork flag version of this quilt (without the star block). Below that I'll add the star block instructions if you want to add one too.

Simple American Flag Patchwork Quilt tutorial from Diary of a Quilter

Want a free printable version of this pattern including fabric requirements and block layout? Enter email address here and it will be sent right to your inbox:

Quilt Measurements

This quilt measures 36" x 48"and is made of 4″ x 4″ finished (4 ½″ x 4 ½″ unfinished) squares.

You can always make the quilt bigger by adding a border or two. (I kept it this size to fit my wall space and so that I didn't need to piece a back.)

OR cut your patchwork squares bigger and use the same layout. You might need a calculator and some graph paper, but the basic dimensions are 9 squares x 12 squares - just multiply those numbers by the size of your finished squares to change the size of the quilt. (Remember to cut squares ½" bigger than the desired finished square size to leave room for the seam allowance.)

Or check out the Maker Valley Yankee Doodle quilt pattern for a Twin Size flag.

Fabric requirements:

25 blue 4½″ x 4½″ squares (at least 3 different ⅛ yard cuts if cutting from yardage)
45 red 4½″ x 4½″ squares (at least 5 different ⅛ yard cuts if cutting from yardage)
38 white 4½″ x 4½″ squares (at least 5 different ⅛ yard cuts if cutting from yardage)
1½ yard backing

Layout the red, white, and blue squares using the diagrams below for color placement.

US Flag trivia: did you know that US Flag etiquette states that flags should be hung with the blue star field in the top left-hand corner?

I hang this quilt on a stair landing in my house, so the vertical flag works perfect for my space.

Here are the layout instructions for a horizontal flag. Both flags take the same amount of squares/fabric.

Once you've got the colored blocks laid out, from there it's just simple patchwork-squares quilt assembly: sewing the squares into rows and then sewing the rows together.

If you'd like more details, click here for a simple squares patchwork quilt tutorial. Just stack up your squares into rows (label the row) and then sew the squares to each other in order to form a long strip.

Press seams alternating directions and then sew the rows together. Again, this tutorial will walk you through the step by step process (with pictures) if you want more details.

Star Flag Quilt Variation

Half Square Triangles tutorial:

Match up 6 Blue 4" x 4" squares right-sides together with 6 White 4" x 4" squares. Draw diagonal line on the back of white squares. Sew a ¼" seam allowance on both sides of drawn line. Cut in half on the drawn line. Press two blocks open and square up HST blocks to 3½″ x 3½″.

Use diagram below to layout 12 blue and white HST blocks with 4 blue 3½″ x 3½″ blocks in each corner. Sew blocks into 4 rows and and sew rows together to get a 12½″ x 12½″ Star quilt block.

Sew 2 sets of 3 blue 4½″ x 4½″ blocks together in a row and sew them to top and bottom of Star Quilt Block. Sew 2 sets of 5 blue 4½″ x 4½″ blocks together in a row and sew them to top and bottom of Star Quilt Block.

Using Diagram for lay out, Sew sections A, B, and C separately (for either Vertical or Horizontal version)

How to make a vertically hanging patchwork US Flag Quilt

Sew section A to Section B.

Then sew AB section to section C

If you'd like to add borders, check out the original tutorial for an example. Sew the borders to the two short sides of the quilt first - this way you won't have to piece them. Then sew the remaining border strips together end to end to add side borders. There is an additional tutorial for adding borders here.

Want a free printable version of this pattern including fabric requirements and block layout? Enter email address here or below and it will be sent right to your inbox:

Adding Borders and Finishing the Quilt

If you are using unwashed fabric, your backing yardage should be just wide enough for this quilt. (If your backing yardage is pre-shrunk you may need additional yardage.)

Finishing a Quilt:

Quilting and binding tutorials here.

This tutorial is sponsored by Baby Lock Sewing Machines. I've been working with Baby Lock for a few years now and love every single machine that I've worked with. They've got something for every maker, level or budget. (You can read more about How to Choose a Sewing Machine here.)