Note that the pillows are made with 1/2" seams, not 1/4", because they get more stress from elbows and such. If you use a different seam allowance and still want to include a batting or fleece lining, make sure your basting (line 13) falls within the seam allowance. Also, the measurement on line 8 will be equal to the width of your chosen seam allowance. Half inch seams work the best for me and I have never had to mend a pillow seam because someone sat on it or bopped their sister with it.