Steel Holdown Simpson Strong-Tie HHDQ14

This Revit structural connector family provides a high-strength steel holdown for timber framing, featuring precise mounting holes. The HHDQ14 is a heavy-duty, vertical steel holdown designed for critical seismic and wind load resistance in timber-framed structures. It features a robust, U-shaped channel profile with a reinforced base plate and a single large-diameter anchor bolt hole. The vertical back plate is pre-drilled with a dense pattern of smaller fastener holes, ensuring optimal load distribution when secured to timber studs or columns. The geometry is clean and functional, reflecting its purpose as a structural component. It is finished in a standard industrial grey, suitable for clear identification within complex structural models.

The download is a 328 KB file containing a Revit family (.rfa). Load it into a project from the Insert tab with Load Family, then place it like any other component of its category; it schedules and tags with the rest of your model.

In Revit, this family is typically hosted on vertical structural elements or placed as a standalone component within a structural assembly. Users should leverage the provided alignment references to ensure correct orientation against stud faces. Once placed, the connector can be scheduled alongside other structural hardware for accurate material take-offs. It is best practice to manage visibility through dedicated sub-categories to maintain clean floor plans and sections while ensuring the structural integrity of the model remains clearly documented throughout the design process.