Typical types of column reactions I receive from most metal building suppliers are absolutely baffling! Can anyone shed light on the basic column reactions from building manufacturers such as LWIND2_R2E, F1PAT_LL_1, WIND_R1, WIND_R2, lWIND1_L23 represent? Are they referring to Fig 6-9 (ASCE7)? Fig 6-10? Could they be a throw back to UBC? Believe it or not, I have contacted the metal building suppliers to try to understand their tables and even they can't explain it! They often tell me to just use the greatest values, but not knowing is unsettling to me. I like to know that I know. Thanks