Cobwebs Quilt Block Tutorial

Posted by Elaine Huff on

Today let's sew together a traditional Cobwebs quilt block! This is a tribute to my housekeeping - lol! This block is a variation of the Shoofly block and is easy to put together so let's get started!

cobwebs quilt block

Fabric Requirements for a 9" Finished Cobwebs Quilt Block:

  • Light\White: 8 - 3.5" squares
  • Medium/Green: 1 - 4.5" square, and 2 - 4" squares
  • Dark/Pink: 1 - 4.5" square, and 2 - 4" squares

fabric requirements

Sewing Directions:

Hourglass Unit:

Step 1:

Using the Medium/Green 4.5" square and the Dark/Pink 4.5" square ...

cobwebs 1

make an Hourglass unit (also known as a Quarter Square Triangle block). You will wind up with two of these units but you only need one for the Cobwebs block. You can find my tutorial for making an Hourglass block at:

cobwebs 2

Half Square Triangle Unit:

Step 2:

Using the two Medium/Green 4" squares and the two Dark/Pink 4" squares, make four Half Square Triangle units. You can find my tutorial for making Half Square Triangles blocks at:

cobwebs 2 

Corner Units:

Step 3:

Draw a line on the back of a Light/White 3.5" square and match it up with one of the Step 2 Half Square Triangle units. Sew very close to the marked line as shown in the picture below. This allows for the thickness of the fabric and thread to be taken into account when folding and pressing the Light/White fabric.

cobwebs 3

Step 4:

Fold the Light/White 3.5" square along the marked line and match up the corners, press, open back up and trim the seam allowance to about 1/4" as shown in the picture below. Repeat Steps 3 and 4 for a total of four Corner units.

cobwebs 4

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Putting It All Together:

Step 5:

Lay out the Hourglass unit, the Corner units, and the remaining four Light/White 3.5" squares as shown below.

cobwebs 6

Step 6:

From here on out, you will sew the Cobwebs quilt block together just like a typical Nine Patch block. Sew the units into three rows as shown below.

cobwebs 6

Step 7:

Press the seam allowances toward the Light/White fabric as shown in the picture below. (You can see where I got carried away marking the backs of the Light/White squares - oops!)

cobwebs 7

Step 8:

Now you can sew the three rows together to finish making the block! All that's left is ...

cobwebs quilt block 

Step 9:

the pressing. Press the seam allowances toward the outside of the block as shown in the picture below.

cobwebs 9


This was a fun and quick block to sew together. It would make a great scrappy quilt too as you only need two colors (and a background) and not very much fabric of the colors.

I hope you enjoyed this Cobwebs quilt block tutorial! If you like this tutorial and want to see more, simply click HERE to sign up for my newsletter (and receive a free PDF quilt pattern called "Chained Weathervane").

Happy Quilting!



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