Horizontal Structural Irregularities per ASCE 7-16 §12.3.2.1 ASCE 12.3.2.1 Horizontal Structural Irregularities are explained in detail under this title. 1a and 1b Torsional Irregularities per ASCE 7-16 Reentrant Corner Irregularity per ASCE 7-16 Diaphragm Discontinuity Irregularity, ASCE 7-16 Out-of-plane Offset Irregularity per ASCE 7-16 Nonparallel System Irregularity per ASCE 7-16 Next Topic 1a and 1b Torsional Irregularities per ASCE 7-16 Related Topics Vertical Structural Irregularities per ASCE 7-16 §12.3.2.2 Reentrant Corner Irregularity per ASCE 7-16 Diaphragm Discontinuity Irregularity, ASCE 7-16 Out-of-plane Offset Irregularity per ASCE 7-16 Nonparallel System Irregularity per ASCE 7-16