These comments are the result of work by Brent Blackwell, who was a graduate student in the Del E. Webb School of Construction at Arizona State University. Masonry contractors, personnel at a fabricating and quarrying facility in Southern Indiana, and the Indiana Limestone Institute were all interviewed to determine the critical factors that affect impacting quality limestone work. The objective here is to present to the building industry a commentary on the interaction that must take place between the masonry contractor and the stone producer to achieve a successful project. Communication between supplier and end user is of utmost importance in delivering a quality project. The contractor and the supplier/fabricator have a responsibility to inform each other in a timely manner about their respective expectations concerning schedule and all essential information necessary to produce the desired results. It is essential that the important information exchanged be accurate and be given as far in advance as possible. The general contractor GC is often the one who bids and holds the project contract with the owner. Therefore the GC is the entity that is closest to knowing the wants, needs, and specifications of the owner, architect, or construction manager. As a result, the contractor needs to be very knowledgeable about the specifications of the materials to be used on the project. The contractor has the duty of informing the supplier of the materials that will be needed, the dates, and the order in which deliveries of finished goods will be made. The contractor should make sure that the supplier is informed at all times of any potential changes, special conditions, and tolerances allowed on the job. It is also critical that the contractor use care in selecting a building stone supplier. Concurrently, the supplier is responsible for accurately and honestly informing the contractor about the capability of the plant to supply the job materials. It is the supplier/fabricator’s duty to know the technical aspects of the product, such as the strengths of the materials, the performance and durability of the dimensional limestone products per the application, as well as to give accurate estimates of the time and cost to produce, package, and ship the materials. The supplier is also responsible for managing the quality of the dimensional stone to ensure that it is cut to measurement tolerances and meets the requirements of the job, including approved physical appearances such as grain and color. The information that follows is based on discussions with masonry contractors, a supplier/fabricator, and an organization that represents the limestone industry. Discussions were conducted with the sales, production, shipping, quality control, and financial and management personnel at Indiana Limestone Company, Inc., to learn their perspectives on what could be done to improve the deliverability of quality limestone to contractors. Indiana Limestone Company, Inc., is the nation’s largest supplier and fabricator of limestone. Next, discus-