Boy Quilts Fat Eighth quilts Modern Quilts Smoke & Rust Fabric

Mountainside Quilt (How to Make it Bigger)

You asked for it. I’m talking about making the Mountainside quilt BIGGER. Turns out, lots of people are making this one for beds of loved ones. As is, the pattern instructions yield a nice lap size of 68″ x 72″. Today, I’m sharing all the details on how to increase the Mountainside quilt top to 81″ x 81″ finished size.

Mountainside quilt by Lella Boutique. Fabric is Smoke & Rust by Lella Boutique for Moda Fabrics. Make it with fat eighths. Great boy or modern quilt. Fabric is Smoke & Rust by Lella Boutique for Moda Fabrics
Mountainside quilt by Lella Boutique. Custom quilting by Natalia Bonner.

If you don’t have a copy of that pattern yet, be sure to grab one. It comes in PDF or printed booklet formats.

The fabric is Smoke & Rust by Lella Boutique for Moda Fabrics. You should still be able to find it in a few shops (as of August 2021) but the collection will start to become harder to find as time goes on since Moda only does one printing. I do have a few fat eighth scrap bundles in the shop here from my destash if anyone’s interested.

Mountainside quilt by Lella Boutique. Fabric is Smoke & Rust by Lella Boutique for Moda Fabrics. Make it with fat eighths. Great boy or modern quilt. Fabric is Smoke & Rust by Lella Boutique for Moda Fabrics
Mountainside quilt layout for the 81″ x 81″ version by Lella Boutique

MATERIALS NEEDED

Finished block: 9-1/2″ x 9 1/2″

Finished quilt: 81″ x 81″

FYI: These yardage calculations assume 41″ usable WOF (width of fabric). Every manufacturer is a little different and WOFs can range from 40-44″.

  • (14) fat eighths for mountain centers
  • (14) fat eighths for mountain exteriors
  • 3-1/8 yards background fabric*
  • 1-5/8 yards accent fabric*
  • 3/4 yard binding fabric
  • 6-1/4 yards backing fabric
  • 90″ x 90″ batting

*NOTE: For a single-print background (no accent “stripe” along the bottom), nix the accent fabric and get 4-3/4 yards of background fabric instead of 3-1/8 yards. An example would be this all-charcoal version I made:

Mountainside quilt by Lella Boutique. Fabric is Smoke & Rust by Lella Boutique for Moda Fabrics. Make it with fat eighths. Great boy or modern quilt. Fabric is Smoke & Rust by Lella Boutique for Moda Fabrics
Mountainside quilt by Lella Boutique. Custom quilting by Natalia Bonner. NOTE: Minky backing gives the quilting a puffier look (and maximum softness on the back, of course).

CUTTING

Here are the cutting adjustments – reference your copy of the Mountainside pattern instructions:

STEP #1 (“mountain center” fabric cutting)

  • Cut 14 sets instead of 12.

STEP #2 (“mountain exterior” fabric cutting)

  • Cut 14 sets instead of 12.

STEP #3 (background fabric cutting)

  • Cut (1) extra strip 14-3/4″ x WOF (2 total). To the extra strip, cut (1) “G” square 14-3/4″ x 14-3/4″. Cut it in half twice diagonally to yield (12) “G” side triangles total. (Only 9 will be used.)
  • From the remnant, cut (2) “I” squares. Cut each square in half once diagonally to yield (4) “I” triangles (22 total).
  • Replace the (2) 16-1/2″ “K” strips with (2) strips 22-1/2″ x WOF. Piece them end-to-end to get (1) new strip measuring approx. 22-1/2″ x 81-1/2″.
  • Cut (4) extra “J” squares. Add to the others to get (28) total.

STEP #4 (accent fabric/background cutting)

  • Replace the (2) 22-1/2″ “L” strips with (2) strips 26-1/2″ x WOF. Piece them end-to-end to get (1) new strip measuring approx. 26-1/2″ x 81-1/2″.

ASSEMBLY

  • STEP #11: Make (28) triangles instead of (23).
  • STEP #12: Make (22) blocks instead of 18.
  • QUILT-TOP ASSEMBLY: Referring to the diagram below, add 1 extra “G” side triangle to the top section+ 4 extra blocks from Step #12 (blocks 1-4) and 1 extra triangle from Step #11 (block 5) to the bottom.
  • STEP #14: When you measure and calculate the average width of the quilt top, it should be approx. 81-1/2″ wide. Trim the “K” and “L” strips to match the average. Sew the trimmed “K” strip to the top and press. Sew the trimmed “L” strip to the bottom and press.

Hope that helps! If other questions about this mountainside quilt pop up along the way, feel free to comment. Chances are, someone else may have the same question and this can continue to be a helpful source for making this pattern.

11 Comments

  1. Nancy F Lambert

    August 20, 2021 at 6:59 am

    Thank you..

  2. Kare Mc

    August 20, 2021 at 9:54 am

    This is great, thank you! Any thoughts on down sizing to a baby quilt? Would love to make this for a November baby…….

    1. lellaboutique

      August 20, 2021 at 10:23 pm

      I haven’t actually sat down to do all the calculations and diagrams but here are my quick suggestions for a baby version giving it a quick glance:

      -You will need only 7 fat eighths for mountain centers + 7 fat eighths for mountain exteriors.
      -Step #3 (background cutting): I would still cut 2 strips 16-1/2″ x WOF for the top section above the mountain blocks… Trim the 16-1/2″ x 80″ K strip width to match the average width of the patchwork section of the quilt, it should be approx. 54.5″ wide. (But wait to measure and double check and trim to match.) From the background fabric, you will need 10 side triangles + 4 corner triangles + 7 “I” squares (each cut once diagonally to get 14
      “I” triangles) + 14 J squares.
      -Step #4 (accent/background cutting): Cut 2 strips 16-1/2″ x WOF for the bottom “accent stripe.” You will need to trim the 16-1/2″ x 80″ L strip width to match trimmed K strip.
      -Step #11: Make 14 triangles instead of 23.
      -Step #12: Make 14 blocks instead of 18.

      Hope that helps. I believe that would result in a finished quilt size of approx. 54″ x 59″.

      1. Karen Mc

        August 26, 2021 at 7:27 am

        Thanks so much, this is super helpful! The mountains will be in pinks and purples. I need to cut pieces today so I can start sewing tomorrow….the baby shower is now in September!

  3. Jacobson Family

    August 20, 2021 at 1:08 pm

    Thank you, this will be very helpful. I bought the pattern, but have put off making it because I wanted to make it larger. Is there a way for me to print these instructions, to leave with my pattern?

    1. lellaboutique

      August 20, 2021 at 9:58 pm

      Yes! You can copy and paste the blog contents into a Word document and print it that way. Hope that helps!

  4. Darla Burdick

    August 22, 2021 at 1:00 pm

    I just started making the mountainside quilt this week,my son ,for whom it is intended,visited this weekend. I asked him would if larger size would be preferred,of coarse, so thank you for the updated version. Another comment ,as much as you show the basic grey line of persimmon fabric ,could you convince MODA to reprint that line,it’s is so beautiful. You are my new fav designer VG. Darla Burdick

    1. lellaboutique

      August 25, 2021 at 7:47 am

      I wish! I loved Persimmon but Moda will very rarely do a reprint. You may want to check out BasicGrey’s newer line Cider – it is a sister collection and has a very similar look and color palette 🙂

  5. jennifercreatesb

    September 5, 2021 at 11:00 pm

    I am so excited to start this quilt! Thank you for the directions to make it larger! I just bought a fat 8th bundle of smoke and rust, it is beautiful fabric!

  6. Susan

    May 6, 2022 at 7:51 pm

    Trying to locate your material as stated. Have you made this in another line of fabric ? Thank you. Mountainside is such an attractive pattern for a boy. This is for my 16 year old grandson.

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