No it should be at least 1.5 . The sides of each part of the hex will b .75. I've run into problems bc truly 1.50 is the diameter. I would cut a bit more than 1.5 to get a good cut. I'm working on grandmother's flower garden. The hexagon has a mystical background. It used to be thought of as having special powers. Ie I'm gonna put a hex on you.