With the patterns, you need to make sure when you print, that the computer or printer does not scale the pattern. When printing, go into your printer settings and or advanced settings and look for settings for scaling and choose a settings that will not scale or resize the image. If you do that, then you will always have the correct sized pattern. As for your 6.25 measurement, you would have to be more specific because im not sure what you are referring to, but try the no scaling first.