Oklahoma's Largest Post-Tension Supplier
Founded in 1988 by E.C. Williamson, Oklahoma Post-Tension, Inc. (O.P.T.) has supplied materials for more than 35,000 residential and commercial post-tension foundations, and is the largest post-tension supplier for foundation solutions in Oklahoma including:
  • Slab-On-Grade
  • Elevated
  • Engineering Services
Our goal is to provide excellent customer service with the highest quality product.  O.P.T. is customer driven and takes a hands-on approach to all projects no matter the scope or size.