Free Pattern – Streak of Lightning Quilt Block

Posted by Elaine Huff on

The Streak of Lightning quilt block is a great block for using up those skinnier strips you’ve been saving and finishes at 10″ square! It is similar to a Log Cabin block (you can find my tutorial for a Log Cabin block at

Let’s do this!

streak of lightning quilt block

Fabric Requirements for a 10" Finished Streak of Lightning Quilt Block:

  • Light/White: 2 – 1.5″ squares
  • Dark/Black: 10 – 1.5″ squares
  •  Assorted Prints: 
    • 2 – 2.5″ x 1.5″ rectangles
    • 2 – 3.5″ x 1.5″ rectangles
    • 2 – 4.5″ x 1.5″ rectangles
    • 2 – 5.5″ x 1.5″ rectangles
    • 2 – 6.5″ x 1.5″ rectangles
    • 2 – 7.5″ x 1.5″ rectangles
    • 2 – 8.5″ x 1.5″ rectangles
    • 2 – 9.5″ x 1.5″ rectangles

streak of lightning fabric requirements

Sewing Directions:

Step 1:

Four Patch Unit:

First off, using the 2 Light/White 1.5″ squares and 2 of the Dark/Black 1.5″ squares, make a simple Four Patch unit as shown in the picture below. You can find the tutorial on making Four Patch units at

streak of lightning 1

Step 2:

Strips Sets:

With the remaining 8 Dark/Black 1.5″ squares and the 3.5″, 5.5″, 7.5″, and 9.5″ rectangles, sew strip sets as shown below. Press the seam allowances away from the Dark/Black square. I started out pressing toward the black square, but in the end it was better to press away from the black square – so I won’t be showing pictures of the back of the block until later on – Lol!

streak of lightning 2

Step 3:

Block Construction:

Sew a 1.5″ x 2.5″ rectangle to opposite sides of the Four Patch unit. Press seam allowances toward the rectangles.

streak of lightning 3

Step 4:

Using the two 4.5″ strip sets you made above, sew them to the sides of the unit you just made. The seams should nest nicely and you can press the seam allowances toward the outside of the unit.

streak of lightning 4

Step 5:

Now sew the two 4.5″ x 1.5″ rectangles to the top and bottom of the unit and press the seam allowances toward the outside of the unit.

streak of lightning 5

Step 6:

I got so immersed in sewing I forgot to take a picture! The missing picture would have shown the two 6.5″ strip sets being added to the unit. Again, press the seam allowances toward the outside.

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Step 7:

Next, sew the two 6.5″ x 1.5″ rectangles to the top and bottom, pressing the seam allowances to the outside of the unit. You will continue in this fashion until you’ve sewn all the rectangles and strip sets.

streak of lightning 7

streak of lightning 8

Here’s where I started pressing the seam allowances correctly.

streak of lightning 9

streak of lightning 9

streak of lightning 10
streak of lightning 11

All done except for the pressing!

streak of lightning 12

In Conclusion:

I think this is a great block to use up skinny scraps and not have to worry too much about color placement. However, when I do this block again, I probably won’t use black prints in the rectangles – not enough contrast between them and the black squares. 

hope you've enjoyed the Streak of Lightening quilt block. If you liked this post and want to see more quilting tutorials like this, simply click here to sign up for my newsletter and also receive a free PDF quilt pattern called Chained Weathervane.

Happy Quilting!


P.S. To purchase a PDF of this block (in 3 sizes) from my Etsy shop, just click on this link:

P.P. S. Here's a link to a post I did on some of the different layout options you have with this block:

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