From various surveys, steel bolted end plate connections are used widely in construction projects throughout the UK. The most popular connections are flush end plated ones with extended end plated ones just behind in popularity. These connections are chosen over other connections types mainly due to their ease of construction and fabrication. The main objectives of this project was to develop a design philosophy to predict column web failure moments based on a series of full scale tests (flush and extend end plates) carried out at the University of Abertay Dundee. Buckling of the column web was observed in a large number of the bolted beam-to-column connections tested. Three dimensional finite element prediction models were developed using the software package ABAQUS, these consisted of 3 flush end plates and 4 extended endplates connections. Investigation of Eurocode 3-Annex J was also undertaken with emphasis on the 7 connections that failed by column web buckling. Comparison between the three different prediction methods were investigated, this involved comparing physical test, Eurocode 3 and finite element results (ABAQUS).