Trimming a flying geese block to the correct size is simple if you turn the ruler in the correct direction. This tutorial will walk you through trimming a flying geese block to 2.5" x 4.5" and it works for trimming to any size.
After making flying geese using the No Waste Method (4 at a Time), it will look like the image below. It will have little tails at the top and on the bottom two sides.
So, you found an awesome pattern that uses the 8 at a time half square triangle method and now you need to cut them apart? Since most of my patterns include HSTs, I thought I would share some tips and visuals for getting the cleanest and straightest cuts. This tutorial includes a video explaining the process and written instructions below.
This tutorial is written to show how to think about piecing a back that works for the size quilt top you have finished. Each size is listed as “averages” because all quilts are different sizes. Don’t take these measurements as gospel, you will still need to measure.
Standard practice for quilting on a domestic machine is to add 2” to 4” to all four sides of your quilt top. This will give you the minimum size that your backing should measure.