The amount of post-tensioning strand sold has almost doubled in the last ten years and the post-tensioning industry is continuing to grow rapidly. To ensure quality construction, the Post-Tensioning Institute (PTI) has implemented both a Plant Certification Program and a Field Personnel Certification Training Course. By specifying that the plant and the installers be PTI certified engineers can ensure the level of quality that the owner will expect. PTI also publishes technical documents and reference manuals covering various aspects of post-tensioned design and construction.
The Post-Tensioning Institute (PTI), recognizes Tommy Pinion of Rock Solid Foundations as a certified PTI installer.