Half Square Triangle Tutorial

Posted on June 01, 2013 by Jenn Thurston | 0 comments

I'm sure almost everyone out there in the quilting world already knows how to make a half square triangle block.  There's nothing fancy to making one, but they are in oh so many beautiful blocks!  So if you don't know how to make them, today is your lucky day!  I was making another quilt to add to the collection for our Charity Quilts, and thought a half square quilt would be a really quick and easy quilt to make.  Here's a quick tutorial on how to make half square triangle blocks.



Details of our quilt:

Size:  43" x 52"

We used four different colors (if you like the fabric we used, it's called Pirates by Riley Blake, such a cute boy quilt fabric which can be so hard to find sometimes!)

Colored Blocks: One 10" strip WOF (width of fabric) of each four colors.  Cut these into 10" x 10" blocks, you will have a total of four 10" x 10" squares of each color.

Background Blocks:  1 1/4 Yard.  Cut 16 10" x 10" squares.


- Mark a diagonal line down the center of the background blocks. 



- Sew a 1/4" seam down both sides of the line you just marked.


- Cut on the center line.


- Press the seam towards the dark fabric.


- Align the diagonal line of ruler on the diagonal sewing line, trim the top and right side of the block.



- Flip the block to trim the other two sides, we trimmed our block down to a 9" block.



There you have it, it's that easy to sew and trim half square triangles!  Now you just need to decide on your quilt layout, which may sound easier than it really is with all those choices... diamonds, chevron, diagonal lines... so many layout choices!



Posted in fabric, half square triangles, pirate, quilt, riley blake, tutorial