Originally Posted by mom-6
Sometimes I will use the lines on the mat and sometimes I'll use only the lines on the ruler. If it is a measurement wider than my ruler that's the only way it can be done! For the ones that are within the ruler's width I usually don't bother with also lining it up with the lines on the mat.
I, too, use both methods at times, but mats are not always accurate, so I teach my students to use a ruler and not rely on the mat markings. Also be aware that you CAN indeed use a ruler when the cut is wider that your ruler...just put 2 rulers side-by-side! I do that all the time for wide borders, especially if your mat is well worn or not terribly accurate.