Unlike conventional reinforced masonry, which requires grout in every core containing rebar, post-tensioning tendons don't need grout. Until recently, only proprietary post-tensioning systems were allowed for masonry construction. However, designers can now design their own system, and contractors can install newly available post-tensioning hardware. On a multipurpose building that Ronnie Thompson, president of Thompson Masonry, Salem, Va., built for a school in Roanoke, Va., he finally found a way to cut the amount of grout needed: All masonry on the project, including shear walls, was post-tensioned. On the Roanoke school, as usual, the post-tensioning rods were anchored at the bottom and top of the walls. For constructability, however, Thompson did not embed the 250 post-tensioning rods in the foundation as it was cast. The contractor used two other methods instead. For shear walls, after laying the first block course, workers drilled holes into the concrete footing and then epoxied the post-tensioning rods into these holes. For all other walls, the contractor used an anchoring method developed for this project. Mostly, Thompson waited until all the walls were complete to post-tension them. However, the masons partially stressed some tendons earlier for walls that were vulnerable to wind during construction. To demonstrate how post-tensioning works and to compare different methods of anchoring post-tensioning rods, the contractor built a test wall on the site of the school. About 40 designers came to observe the demonstration, which included four anchoring methods, all illustrated in the article. The article also lists places to use post-tensioned masonry. While post-tensioned masonry may seem new to United States practice, the technology is not in a stage of infancy. In fact, engineers in other countries have been developing prestressed masonry technology for three decades. Research is continuing now in the United States, and code provisions soon will be adopted.