Lava Meets Sea Half Square Triangle Quilt (With Tips to Make Your Own)

79 Comments

Lava Meets Sea Finished

This is possibly my favorite quilt, and it’s certainly the one that has had the most “how can I make one” questions as I was making it, so I thought I’d share some tips on how to make your own.

First, the story behind it:  This quilt is a gift for my best friend Kim, who is engaged to Matt.  I wanted to make a quilt for them that would illustrate the blending of two hearts, two lives and two families.  I named it Lava Meets Sea, because when lava hits the sea it makes rock, a strong foundation.

Lava Meets Sea Quilt Tilted

To start yours, decide on the colors you’d like to use.  To make it easy on myself, I bought bundles of fat quarters of coordinating reds and blues.  Both are Colorstory Fat Quarter Bundles by Robert Kaufman.  The red is called Hot Spice, the blue is Grecian Waters.  This gives you a wide range of lights and darks in each color to work with, but keep in mind that this quilt is based on value (the depth of color) as much as it is on color itself.  Be sure when choosing your colors and making your blocks that you continue the pattern of dark and light even as you change colors.  With the bundles of colors I chose, the red bundle is darker than the blue, so notice how the colors meet in the middle of the quilt.  The darker shades of the red are used with the paler shades of blue to keep the dark and light values moving through the center of the quilt where the colors meet.  It is very important that you not rely on the different colors to create the effect, make sure you’re keeping the dark and light values even through the color changes.  That might be easier to see from this photo where I was first laying out blocks.

Kim's Quilt Progress Blue

Here’s my super fancy chart.  Notice that this was not meant to be shared with the public, as I even wrote my optometrist appointment reminder at the top of the page.  *Sigh*  This makes a generous lap sized quilt, big enough to share for a nap on the couch.

Fancy Lava Meets Sea Quilt Chart

If you follow my chart, you’ll want to cut 201 red squares and 195 blue squares for a total of 396 squares.  Then you’ll want to make 127 red blocks, 121 blue blocks and 148 mixed blocks for the middle.  (I’m not sure that I kept completely to the chart, but it is helpful when you first start laying out the blocks.)  You can see how I separated my colors into two stacks each of dark, medium and light, one for the “solid” red (or blue) and another for the mixed (middle) area.

Kim's Quilt Process 3

The blocks for this quilt are the most simple blocks you can make, half square triangles.  Even if you’re new to sewing, with just a little practice you can make perfect blocks.  There’s a full tutorial here if you need to learn the method.  (I started with five inch squares just as in the tutorial.)  The tutorial will explain to separate colors into dark, medium and light and then mix them together to get the contrast you need for each side of the block.  By looking at the photos here, you should be able to lay out the blocks to form the diamond pattern that flows across the quilt.  Remember, if you’ve made half square triangles with contrasting values, you can create many different designs just by changing the direction of the blocks.  Play around with them and you may find a design you like more than this one!

Lava Meets Sea Quilt Completed

I chose a plain black binding, something that wouldn’t distract from the strong pattern of the quilt.

Lava Meets Sea Quilt Black Binding

Please let me know if you have any questions about construction, and I’d love to see your photos if you make one!  Please link me up so I can see what you made.  :)

Lava Meets Sea Quilt

Lava Meets Sea Quilt Porch Swing Cushion

Lava Meets Sea Quilt Porch Swing

sarahsigres

79 thoughts on “Lava Meets Sea Half Square Triangle Quilt (With Tips to Make Your Own)

    • Thank you, Laura! I can’t help it, I really like this one, too. I think it’s the cool and warm together, and quilts made in solids always seem to be a favorite of mine. I can’t wait for her to have this one — I still need to get it shipped!

  1. I am speechless. I appreciate each and every cut and stitch. You are incredibly gifted and I thank you for expressing your friendship through your time in crafting handmade gifts. <3

    Now, when I showed Matt this post, he wasn't speechless as he scrolled through, "Wait. Is someone putting their a– on our quilt?" LOL I had to explain photo shoots ;)

    • I am SO glad you like it, Kim! Please let Matt know that nobody sat on his quilt … well, with the possible exception of the cats. (They’re sneaky that way.) I am running out of places to take pictures of quilts, new photo shoot location suggestions, please! And I still need to get this shipped to you! Right now it’s just hanging out with the fabrics — shut away from the cats. ;)

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  5. This quilt is great. I want to do one for my mother in green, blue and purple batics. Can you tell me how big your quilt is? I would like to take 2,5” squares, and I’m not sure if they’re to small for this pattern. My quilt will be about 60″ x 80″.
    Thank you very much,
    Barbara

    • Hi Barbara! This quilt is at its new home, but I think it’s around 72″ x 88″. (Five inch squares become 4.5″ half square triangles, and their finished size would be four inches when using quarter inch seams, so 18 rows by 22 rows is 72″ x 88″.) If you start with 2.5″ squares, they’ll be about 2″ half square triangles, and will finish in the quilt at 1.5″. You’ll need 40 rows across and 54 down for the size you mentioned, or 2,160 half square triangles. That would be beautiful, but it’ll take a LOT of time! I’m currently making a 26″ square pillow top starting with that size squares and I’ll need 289 half square triangles.

      • Hi Sarah,
        Thank you very much for your repley. I think I’ll do it. It’s a lot of cutting and sewing but that’s no problem. I’ve already done an Irish Chain with about 1800 pieces. Right now, I’m waiting for my fabric so I can start sewing.

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  8. I absolutely loove this quilt! I’m quite new to quilting, actually working on my first quilt right now. I’m really falling in love with this hobby. My next project is to recreate this quilt! I have a couple questions though if you don’t mind, sorry if they’re silly but as a mentioned I am new at this and still pretty un-educated haha. Where I live, we order fabric by meters (you can get half meters three quarter meters, whatever you want), roughly how much of each fabric do you think I would need and how big does this quilt end up being? Also what colour of thread did you use for the swirly pattern that holds it all together (I’m sure there’s a name for that…I just don’t know it haha)

    Thank you in advance, sorry for all the questions!
    -Danielle

    • Hi, Danielle! This quilt ended up about 72″ x 88″. Five inch squares become 4.5″ half square triangles, and their finished size would be four inches when using quarter inch seams, so 18 rows by 22 rows is 72″ x 88″. You can easily change the size by adjusting the size of your squares or increasing/decreasing the number of columns and rows. I’m really not sure how much fabric to tell you to get. I bought two fat quarter bundles (links in the post above) and had a little left over, but it would really depend on how many colors you choose to go with. I always try to get more fabric than I think I’ll need because it’s good to have scraps. It was quilted with black thread.

  9. Sarah, I love this quilt! I am thinking of doing a similar baby quilt. With that, I have some questions! Do you think greys and yellows would work? Also, any recommendations on adapting this quilt and instructions to a smaller baby/crib quilt?

    Thanks!

    • Hi, Lauren! I think greys and yellows would be beautiful! (In fact, I’ve thought of making one in greys and oranges to keep for my own!) I think if I were making a baby quilt similar to this, it would be wasteful to buy two big packs of fat quarters like I did for this one unless I really had other uses for it already in mind. I’d use an ombre fabric for the variation in value, like this: http://www.vanessachristenson.com/2012/04/v-and-co-my-fabric-line-with-moda.html Scroll down and take a look at the pictures of the opened jelly roll and you’ll see what I mean. The fabric moves from dark to light across the width, so you could buy a yard or yard and a half of two colors and make a smaller scale version pretty easily. (I used green and pink to make this baby quilt: http://coopcrafts.com/2013/06/07/an-ombre-baby-quilt-ansleys-diamonds/ ) I’d really love to see your quilt, I think it’ll be beautiful!

      • Yellow and grey version has begun! Next question! What color did you quilt the stitching along the top to quilt it actually together so it looked good on both colors, as well as the black on back?

        Thanks again for your help!!!

    • Hmmm, and also — I might make all the blocks a mix of gray and yellow, pairing darks, mediums and lights together. Then I’d place the blocks so that the darker colors were at the upper left, becoming lighter to the middle, then dark again at the lower right. But just a thought!

    • Wonderful, Lauren! I can’t wait to see it! For this quilt, I went with black quilting. I wanted something a little dramatic and thought it would tie in with the black binding, too.

  10. I instantly fell in love with this quilt and started buying fabric immediately after seeing it! Instead of buying fat quarters I bought hombre fabric. Call me crazy… I’m doing the quilt in 2″squares which turn out to be 1 1/2″ when finished. It will take me quite some time to finish but when I do I will send pictures! The best way to do it for me was to draw it on a piece of graph paper so I can check off the rows after I see them together. Thank you so much for the great tutorial and idea!

  11. Hi Sarah, I just wanted to pass on to you that I love your website and blog. I think I love all of your quilts and it has inspired me to try some of your patterns. I just ordered some ‘Aneela Hoey’ fabric to make a quilt like your ‘Grandma Tell Me a Story Quilt’, I am going to use your idea of your ‘Healing Quilt’ for a friend who loves bright colors and snowboarding and I just ordered fat quarter bundles to make a quilt like your ‘Lave Meets Sea’ pattern. At first I wanted to try to make it exactly, but then decided to try to make my own up, using you as inspiration. I ordered the reds/oranges/yellows, but ordered the purples instead of the blues. It seems kinda strange, but how often does it happen that you like ALL quilts a person makes? I guess we must have similar styles. I am really looking forward to receiving the fabrics and tackling the quilt patterns. I will send you pictures someday of them when I get them done, so you can see how you inspired me. (:
    I should also send you some photos of quilt tops I have made to see if you like mine. I would appreciate your feedback. Take care and happy quilting. (:

    • Hi Corry! Nice to meet you, and sorry I’m so late responding. I love that we like so many of the same quilts and fabrics, that’s awesome! I think the Lava Meets Sea quilt would be BEAUTIFUL in reds, oranges and yellows with purples. I’d love to see a picture of it, and all the rest, plus any others you make! Do you have a blog, or a Flickr account where you share your quilt pics? Please let me know how it all goes, and let me know if you have any questions — I’ll try to be quicker responding!

      • Hey Sarah, no worries. I am just in the process of setting up a Flickr account now, so it may take awhile to figure out all the bells and whistles, but as soon as it’s up, I’ll let you know. I don’t have a blog because I just don’t want to bother with keeping up with it. For now, I’ll just try the Flickr account.
        I had a chance to work on my quilt this weekend, and its coming along nicely. I set myself up a design wall, and am sure glad I did. Wow, there are a lot of pieces, plus I have a kitten who loves to ‘help’ me out by tossing the pieces off the table-nice! (:
        Oh, yeah, I decided to call my quilt, ‘Prairie Sunset’. It represents all the beautiful sunsets I have been witness to while growing up as a child in Saskatchewan, Canada.
        Happy Quilting.

    • Hi Sarah, so I think I have my Flickr account set up now. I have the privacy set on it, but I am ‘following’ you and have you set as a ‘friend’ so I think you can see my quilt pictures. Please let me know what you think. (:
      My Flickr name is: Corry Byrne
      Let me know if it works for you.

  12. I found this quilt picture via Pinterest (which directed to your flickr account, thanks SO MUCH for linking it to this post!! I hate not being able to find the quilter!) I had to just take a moment to say how gorgeous it turned out. I agree with the earlier posters, your friend is very lucky! I also really appreciate the tips and insight into how you arrange your quilt. Thanks so much for sharing the tips, how-tos, and the finished product!

    • Hi Elizabeth, and thank you! I have the same pet peeve if I can’t find more information on a quilt or pattern that I like. So much better when I can click through and learn more!

  13. This quilt is beautiful, absolutely stunning. It immediately jumped over everything else on my to-do list. I’m making it in greens and blues by request and ran into a question right out of the gate. Did you use every hue in your fat quarter bundle? I ask because now that I see a grecian waters bundle in person, it appears to have some greens (3-4 shades) in it and your photos don’t reflect that on my monitor. I really hope to do this pattern justice and hesitate to use green on both sides.
    In an earlier answer, you said that you had “little left over” but I cannot quite discern how many shades are there. I could be doing the math wrong, but I have 46 fat quarters (two bundles) and think the minimum needed is 33?
    Thank you in advance for your help!

    • Hi Chelsea! Yes, I used every single hue in both fat quarter bundles, even the greens. I wanted to have a good variation of colors and the greens really helped give “sparkle” among the blues and aquas. I did use a little more of colors I liked and less of those I didn’t, but that was just personal preference. Keep in mind too that you’ll have to carry the color value through the section where the colors meet, so you may need more from the dark reds and more pale blues. It’s really hard to say how much I have left over because they’re little scraps. I used some of the leftover reds to make this pillow http://coopcrafts.com/2013/09/13/red-flower-pillow/ and I have two gallon sized bags filled with the scraps from the rest of the reds and blues.

  14. hi! this is such a beautiful quilt & i really appreciate your sharing your process. also found this through pinterest & am so glad i did. i’m adding it to my must-make list. really, thanks so much for the instructions, etc. this rocks! :)

  15. this is beautiful! I love the colors you chose and how you make the values flow across the quilt. I’ve made a few of these, my most recent was a red/white/blue one, and i’ve also done a blue/green/yellow and also an all-color one. It’s so fun to make, and really not that hard to make the half-square triangles, and can have such a pleasing result. i like the idea of using solid colors = i’ll have to try that next time. mine have all been with prints.

      • Hi, Erin! Yes, I used at least a little of everything, but more of the colors I liked best. It helped to have a red bundle that was a good bit darker than the blues, to help through that middle section.

    • Thank you, Leah! I love making half square triangles, too, and they are always so striking! I didn’t have much use for solids when I first started quilting, but they’ve really been a favorite lately. They really are versatile, and can be soothing or exciting, will fit whatever mood you want to express.

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  17. I absolutely fell in love with this quilt & I am going out today to buy fabric! I’ve never done one in complete solids since I’ve always been a fan of prints but the colors & design of Lava meets Sea is just stunning. I can’t wait to get started!

  18. I’m currently making my own version of this quilt, is it okay if I use one of the pictures of your version in my Blog post about it? I would link back to your site.

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