Share Email Facebook Twitter LinkedIn StructuralSectionRound.Diameter Property Pipe Diameter. Namespace: Autodesk.Revit.DB.Structure.StructuralSectionsAssembly: RevitAPI (in RevitAPI.dll) Version: 26.1.0.0 (26.1.0.34) Syntax C# public double Diameter { get; set; }Property ValueDouble See AlsoReferenceStructuralSectionRound ClassAutodesk.Revit.DB.Structure.StructuralSections Namespace