: You can find detailed calculation sheets for rectangular buildings and other structures like cylinders . Online Calculators (Browser-Based) Wind Load Eurocode 1 - ExcelCalcs
Your sheet must also check for internal pressure ((c_pi)) based on opening ratio (\mu). Provide a toggle: "Sealed building" ((c_pi = \pm 0.2)) vs "Dominant opening" ((c_pi = \pm 0.8)). wind load calculation excel sheet eurocode
Where: