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Shannon Fraser Designs

Spreading quilty joy one stitch at a time!

Flag Quilt Block for the Mouse Trap BOM 2025

July 15, 2025 by Shannon Leave a Comment

Mouse Trap Block of the Month Quilt Along 2024 by Shannon Fraser Designs - The seventh quilt block to be released is the Flag block. This modern quilt block will challenge your piecing accuracy with tiny strip piecing!. A great way to learn how to keep your piecing on the straight and narrow! Read my top tips for quilting success on the blog. #MouseTrapBOM #quilting #quiltalong #strippiecing #traditionalpiecing #quilters

Congratulations, you’re over the halfway point of the Mouse Trap Block of the Month Quilt Along. Time flies when you’re having quilty fun! Good thing there’s still plenty to look forward to, and this month it’s all about the Flag quilt block.

I commend you for sticking with last month’s block. Curve piecing can feel super intimidating, especially when it’s in one piece like the Half Moons block. Seriously well done! By stretching yourself outside your comfort zone, you’ve grown and expanded on your quilting repertoire. Just look at all you’ve already leaned in the Mouse Trap BOM:

  • How to piece quarter circles in the Rainbow block.
  • How to trim up those adorable half-rectangle triangles in the Triangle Points block
  • How to work with templates and piecing angles in the Sticks block.
  • Traditional piecing in the Mosaic block.
  • Learning how to line up triangle pieces with the Apex block.
  • How to piece half-circles with the Half Moons Blocks.

You did such an amazing job last month that this month will feel like a walk in the park. 😉

Today I’m covering:

  • The story behind the Flag quilt block
  • Composition play to be had
  • Quilting technique featured
  • Materials required
  • Top Tips
  • Caution
  • Monthly giveaway details

Let’s dive in!

The Mouse Trap BOM Quilt Pattern is available for instant download!

Test your piecing accuracy with the Flag block, the 7th release in the Mouse Trap Block of the Month Quilt Along! This modern quilt block uses traditional piecing methods and skinny strips to challenge your precision and improve your patchwork skills. A must-try for intermediate quilters looking to fine-tune their technique.
#modernquiltpattern #flagquiltblock #precisionpiecing #skinnystripquiltblock #quiltingtechniques #quiltblockchallenge #skillbuilderquilt #blockofthemonth2025

This post contains affiliate links, meaning, at no additional cost to you, if you click through and make a purchase, I may receive a commission.


Story Behind the Flag Quilt Block

The Flag block design was the sixth drawing in my geometric series. What I love about this one is the simplicity of the lines paired with the negative space. There’s breathing room there that encourages me to take a moment to pause, reflect, and just breathe.

The Flag block is all about precision! Released in month 7 of the Mouse Trap Quilt Along, this quilt block features skinny strips and clean lines—ideal for quilters ready to level up their accuracy and control. Practice traditional piecing with a modern twist in this bold skill builder design.
#quiltingaccuracy #modernpatchwork #quiltblockdesign #bomquilt2025 #quiltblockchallenge #flagblockquilt #quiltblockideas #piecingpractice

Composition Play

The Flag block is so simple, but simplicity shouldn’t be underestimated. There’s something quite beautiful about simple.

You don’t have to look far in the art or quilting world to see that this is true.

The clean lines of the modern quilt block add lovely linear details to your composition.

The sharp lines can also help frame your composition.

Something to ponder!

Quilting Technique Featured

It’s all about strip piecing in the Flag quilt block. These are skinnier but not too skinny strips.

Just take your time, and you shouldn’t have any issues with this one.

I actually lay the entire block out on my cutting mat and just settle in for a chain-piecing session.

Before you know it, all you’re left with is your flagpole to attach. Deceptively easy, but also exactly where you can get tripped up!

Check the caution section below to see what I mean!

Meet the Flag quilt block, a sleek and structured design that plays with skinny strip piecing and bold alignment. As the 7th block in the Mouse Trap BOM, it brings a striking visual rhythm to any quilt composition while helping you refine your piecing precision.
#modernquilt #flagblock #skinnystripsquilt #quiltblockseries #quiltcomposition #quiltdesignideas #intermediatequilter #patchworkpatterns
Shown above is the Flag block featured in the Blue and Coral Mouse Trap Quilt Abstract Version 3.

Materials & Notions

Here’s what you’ll need to have on hand to stitch up the Flag quilt block:

  • Flag quilt block pattern – part of the Mouse Trap Quilt Pattern
  • Fabrics in colours:
    • Colour 1
    • Colour 2
    • Colour 3
    • Colour 4
    • Colour 5
  • Piecing thread
  • Sewing machine
  • Cutting mat
  • Rotary cutter with these blades
  • Ruler – long
  • Ruler – short
  • Small scissors
  • Pin cushion
  • Pins
  • Iron
  • Wool pressing mat  – Use code SHANNONFRASER15 to save 15% on your entire purchase at The Felt Store Canada or The Felt Store USA. Offer cannot be combined with other discounts.
  • Tailor’s clapper
  • Spray bottle
Mouse Trap BOM 2025 quilt kit available from Sew Curated. #quiltkit #mousetrapbom #mousetrapquilt

To make the original pattern cover version, you can find the exact kit featuring the same AGF Pure Solids in this quilt kit from Sew Curated.

Get the AGF Pure Solids dupes from Sew Curated for the colours I’ll be stitching my Mouse Trap quilt in 2025.

Mouse Trap Block of the Month quilt kit featuring AGF dupes for my 2025 colourway available from Sew Curated. #quiltkit #mousetrapbom #mousetrapquilt #fabric
Join the Mouse Trap Block of the Month and tackle Block 7: the Flag block! With traditional piecing techniques and narrow fabric strips, this quilt block is designed to help quilters enhance their accuracy while adding a crisp, modern element to their quilt layout.
#blockofthemonth #mouseBOM #flagquiltblock #stripquiltblock #precisionquilting #modernquiltlayout #quiltalong2025 #quiltchallenge
Shown above are the blocks featured in the Coral Mouse Trap Quilt Abstract Version 2.

Top Tips

Be gentle with your pieces as you’re piecing them together and pressing them. You don’t want to distort the fabric and have it bow on you.

Block 7 is here! The Flag block features clean lines, narrow strips, and traditional piecing—all designed to sharpen your sewing accuracy and elevate your quilt layout.
#quiltblockrelease #blockofthemonthclub #flagquiltblock #stripquiltblock #modernpatchwork #quiltingchallenge

Caution

Double-check before you attach Piece D. That will make a big difference on your layout…ask me how I know – ha!


July 2025 Mouse Trap BOM Giveaway

I know you still have a few blocks to stitch up before you start thinking about how you’re going to quilt your Mouse Trap quilt, but I’m a firm believer that it’s never too early to consider your thread play! You know my love for quilty texture, which is why I reached out to my friends at Wonderfil Specialty Thread to give you the chance to win (3) spools of Konfetti 50wt Cotton Thread and (3) spools of Eleganza 8wt Pearl Cotton Thread.

To enter the giveaway, you must: 

  • Be following @wonderfilspecialtythread and @shannonfraserdesigns on Instagram.
  • Post a photo on Instagram of your Flag block between July 15, 2025, and August 14, 2025, at 11:59 pm Eastern.
  • Instagram account must be public.
  • Tag @wonderfilspecialtythread and @shannonfraserdesigns
  • Include the hashtags #MouseTrapBOM #MouseTrapQuilt

This month’s giveaway is open internationally

The winner is to be announced in the August 15, 2025, Mouse Trap BOM Newsletter!

Mouse Trap BOM 2025 giveaway for the Flag quilt block is sponsored by Wonderfil Specialty Thread.
Refine your patchwork skills with the Flag quilt block—a sleek, skinny-strip design that pushes your piecing precision. Part of the Mouse Trap Block of the Month Quilt Along, this block blends traditional piecing with a modern layout twist.
#quiltblockofthemonth #flagquiltblock #skinnystripquilt #quiltprecision #modernquiltdesign #skillbuilderquilt
Learn how to quilt the Mouse Trap block of the month quilt in the video-on-demand series. As each block is released, so are the video instructions so you can see how the block is constructed. Click to learn more #quiltcourse #mousetrapcourse

The Flag block is going to be the quickest block you stitch up in the Mouse Trap quilt along, and I can’t wait to see it pop up on the ‘gram or in our Facebook group.

If you haven’t already, be sure to get your Mouse Trap BOM Quilt Pattern and sign up for the Mouse Trap BOM Newsletter so you don’t miss any of the quilt-along details 😊 For added help, take the optional Mouse Trap Course to see how each of the quilt blocks is made!

Happy stitching!

xo

Shannon

PS Don’t forget to share your Flag quilt block on the ‘gram to be entered into the giveaway!


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Hi! I'm Shannon. A modern quilt pattern designer based in Montreal. My quilting journey started by stumbling upon a half square triangle tutorial and I've been hooked since. I'm now spreading that quilty joy to you! Read More…

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