Allegheny Structural Components, Inc. (ASC) was established in 2013 to meet the demand for the reintroduction of Open Joist floor framing systems—engineered components known for their strength, consistency, and flexibility in modular construction.
The leadership team behind ASC includes seasoned professionals who helped introduce Open Joist to the U.S. construction market in the 1990s. With decades of experience in engineered building products, the company continues to support modular manufacturers with solutions designed for both single-family and multi-family homes.
Manufactured in western Pennsylvania, Open Joist systems are used by modular manufacturers across the continental United States. The design of Open Joist provides advantages such as open web spacing for simplified mechanical system installation and reduced jobsite waste.
ASC takes pride in its ability to support modular manufacturers with components that are precision-built for efficiency and performance. As demand grows for high-quality, factory-built homes, Open Joist remains a trusted option for structural floor systems in modular builds.