Formula for Column Loading `P_s` = `(P_mF_l)/K` Enter Variables Maximum safe column load, `P_m` = lbs. Factor of safety, `K` = End Fixity Factor, `F_l` = Fixed-free: 0.25 Supported-supported: 1.00 Fixed-supported: 2.00 Fixed-fixed: 4.00 Calculate View Result Column Loading, `P_s` = lbs. Copy Result `P_m` is derived from the graph above. Download the graph to calculate `P_m`