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May 21, 2017 By Mandy 11 Comments

Trimming Your Quilt with Tools from the Hardware Store

This post does not contain affiliate links. 

Despite our best efforts–or perhaps because of them if we’re improv piecing!–our quilts are not always square. This happened to me recently as I was working on a quilt from scratch. I was not paying attention and miscalculated a few blocks, so there were some dangling bits and pieces off various edges.

Cut it off!

Thankfully, I had decided to make it a little bit bigger than the standard twin size, so I could just trim it down. This is where one of my favorite tools comes in so handy: the Bosch GTL2 Laser Square.  When this baby is on, it shines two lasers at a perfect 90 degree angle that extends far beyond even the largest quilt top! Let me explain how I use them.

First, I gather all my supplies

Mandatory:

  • One 90 degree laser level (you can work around this if you only have a single-line laser, which I’ll discuss at the end of the post)
  • At least one large square gridded ruler (I like the 16 1/2″ one by Creative Grids). I use this for each corner.
  • As big a rotary cutting mat as you have. Or multiple mats taped together.

Optional:

  • A second 90 degree laser level
  • Blue masking tape (2″ or wider is better, and you’ll see why in a minute)
  • More gridded rulers. I like to use all my longest rulers. All of them.

Look it over

When I lay out my quilt, I look it over to see if if it has internal structure, such as blocks that need to be at right angles with the trimmed edge.  First, I use my large square to check and make sure the edges of my blocks are perpendicular to the edges I will be trimming. Then I set up my laser level against the square, which gives me my first square corner.

This shows the corner without the square ruler in place. You can see just how much I have to cut off, and you can also see that the laser lines are perfectly square to the internal structure.

Next is the tricky part! I take my second laser level  and set it up on the opposite corner from where I was just working. The hard part is, I am not so concerned about this new corner, but about the corners where there are NO laser levels!  Since I know the other laser has been set “perfectly”, I will lay out my rulers using those two lines to get one good edge.

Yes, we do skateboard int he house.

This the finicky bit! I have to finagle that second level around, forward and backward, twisting it back and forth, until I can get a 90 degree angle AT THE CORNER WITH THE RULERS. This is what you’re aiming for:

The little hills and valleys can make it hard to get a solid laser line, but if you look closely in this picture, you can see that the lasers skim the line of the ruler, and cross each other at the point for a perfect square corner.

I’ve got all four corners, now what?

I used to just start trimming, but any nudge on the quilt will throw your lines off. Now I use my blue painter’s tape and carefully line up the edge of the tape with the edge of the laser. I find it easiest to start on a corner with a ruler and work back to the laser levels

Remember that skateboard? That and other similar reasons are why I tape before I cut. Also, if you’re running your cutting mat underneath, it’s easy to knock everything off true by accident.

I get as close to the laser level as I can without moving it. I also extend my taped line past where the trimmed edges on the opposite side will be.

Once I take the levels away, the 90 degree rulers fit right in.

Trim along the inside of your tape. 

Tadaaaa! This quilt was a custom quilt for Betsy Olmsted, featuring her fabric line!

What if I only have a single-line laser level?

You can still do this, the order is just a bit different.

First, use your square ruler to find the first corner. Use your single laser to sight down the entire length of the quilt and make sure the corner the two lines you’ve sighted are where you want them. Next, set up the laser level on one of those edges and lay your masking tape down. Then do it with the other side. Now you have those two kitty-corner lines, take your square ruler to the opposite corner from where you started and repeat the process until your quilt is exactly how you want it: squared and trimmed!

I hope this helps you! I love trimming quilts this way because it means I never have to go back and straighten things out. True story, I once trimmed away at one of my first quilts trying to get it square until it was more than 6″ smaller, and some sides were trimmed more than others. Don’t be me!

If you liked this tutorial, you might want to check out my Techniques and Tutorials!  Or, sign up for my newsletter on my homepage, where I share these tips and tricks, and interesting tidbits I find throughout the week. Delight in the making, friends! 

 

 

 

 

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Filed Under: Technique of the Week, Tutorials Tagged With: modern quilt, quilt square, quilt tips, quilting, quit, squared corners, squaring up a quilt, trim quilt

Comments

  1. Mary Smart says

    May 21, 2017 at 4:04 pm

    Thank you for this thorough explanation of how to square a quilt with laser lights. I have worked hard with my rulers at the corners to be sure the corners are square in both directions, and that helps, but this goes much farther. I appreciate this very much!

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    • Mandy says

      May 21, 2017 at 4:11 pm

      My pleasure! my goal is always to share as much as I can so we can all be happy with our quilting. You never know what will be useful.

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  2. JEAN says

    May 21, 2017 at 5:03 pm

    Thank you so much! I’ll be looking to borrow my hubby’s laser levels! He’ll be so happy! :/ – Jean

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  3. Lucinda Jones says

    May 21, 2017 at 8:21 pm

    Thanks! Great tutorial & great pictures

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  4. swimbikequilt says

    May 21, 2017 at 11:20 pm

    ive used a laser before, too, stopped doing it because any little nudge messes up the laser line. But never thought to put the tape on! that is brilliant! thx

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  5. Ann Dillman says

    June 27, 2017 at 1:44 pm

    for someone who can totally relate to cutting and cutting and cutting… this is great information. i am an off and on quilter, currently “on” who appreciates all wonderful tips like this. thank you!

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  6. aquilterstable says

    March 28, 2018 at 12:11 am

    This is really helpful – thank you!

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  7. Elnora says

    April 3, 2018 at 12:43 pm

    Thanks for the great tutorial! I keep meaning to buy one of those laser levels.

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    • Mandy says

      April 9, 2018 at 12:41 pm

      You’re so welcome! They’re awfully handy. I love tools I can use for multiple interest areas 😉

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Trackbacks

  1. Weighted Quilt: Step 2 – Quilting Jetgirl says:
    April 5, 2018 at 3:01 am

    […] You can just *barely* make out the faint red glow of the laser in the image above. Note that I was finally persuaded in the benefits of the laser square after reading Debbie from A Quilter’s Table post about Laser Levels and Mandy of Mandalei Quilts has an awesome tutorial on Trimming Your Quilt with Tools from the Hardware Store. […]

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    Reply
  2. Levelling Up | Handwrought Quilts says:
    July 14, 2019 at 12:48 am

    […] used this pretty good tutorial from Mandalei Quilts for the level squares. While she marked her quilt edges with painters tape I used a Clover brand […]

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    Reply

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This blog is my own, and I write all its content. Links to Amazon and Craftsy may contain an affiliate code, since I am part of their affiliate programs. While I am a Bernina Ambassador, the machine I use is one that I have purchased prior to becoming an ambassador and is my property, not Bernina's; I am an ambassador because I love my machine. I do have free things that are sent to me from time to time, and if I use them I will always fully disclose that. All opinions are mine, and I will give them honestly. I am not paid by the people who send me things to write reviews.

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