Size block charts
In a Size Spec, all measurements such as the front length, chest width, and shoulder-length of a garment must be stated. I'll always put a small black and white drawing on the left side of the page to make it more visual for the pattern cutter and, I'll point out more elaborated details and measurements with red arrows. The regular measurements, such as the chest width, I'll just put in the right column. At the right top of the frame, I'll put the sample size. I'll always include a guidelines sheet of how I measured in my Tech-packs to avoid confusion. This guidelines sheet is also called 'POM sheet' or 'POM's sheet' (Points of Measurements).