Abstract: A cutting guide includes an elongated wide flat base plate having ruled markings along one edge and a raised flange along the opposite edge. The raised edge serves as a linear guide for a cutting tool, such as a utility knife, while providing a protective barrier to prevent the sharp knife blade from slipping over the edge and causing injury to the user. A plurality of beveled feet along the lower surface of the base provide structural support and an improved gripping surface to prevent undesired movement during use. The wide base also facilitates holding the guide down firmly against the material being cut to permit steady and efficient operation.