ideYAPI BIM Knowledgebase Building Modelling Steel Building Modeling Truss Prepared Truss Type Prepared Truss Type Trapezoid Type 1 Truss Trapezoid Type 2 Truss Trapezoid Sloping Left Truss Trapezoid Sloping Right Truss Triangular Symmetric Truss Triangular Asymmetric Truss Triangular Sloping Left Truss Triangular Sloping Right Truss Trapezoid Sloping Symmetric Truss Trapezoid Sloping Asymmetric Truss Flat Truss Sloping Flat Truss Trapezoid Vault Truss Vault Truss Double Vault Truss Sloping Vault Truss ×