Square rulers
I've been using the same set of Fiskars square rulers for years, 12 1/2, 9 1/2, 4 1/2 etc. They all have the 1/4" seam allowance on 4 sides of the ruler. Looking at the newer ones, various brands, they all have a 1/2" seam allowance on 2 sides and no allowance on the other 2. Why? It seems it would be difficult to use these to square up blocks since one would have to offset the center point and any angles or seam lines by 1/4 inch in order to trim.
Maybe it's just me.....but I don't understand the purpose of the 1/2" on 2 sides or how you would use these. Enlighten me, please.............