Building System

A building system comprising:

• at least a first module comprising a first ring member and a second ring member, the second ring member being supported above the first ring member by a plurality of uprights;
• a channel provided around each of the first and second ring members;
• a plurality of brackets provided for engagement with the each of the first and second ring members, each bracket comprising a base portion receivable in the channel and connecting portion extending outwardly from the base portion;
• wherein the base portion comprises a planar central portion and planar first and second side portions extending transversely to the central portion from opposed sides thereof such that, when received in the channel, the first and second side portions are located adjacent upper and lower walls of the ring member and securable to the upper and lower walls of the ring member by fasteners passed through the upper and lower walls and openings provided in the first and second side portions, and where the connecting portion comprises a planar wall portion extending outwardly from the central portion and having holes for receiving fasteners to engage with cross members of the building module provided to support a floor structure or a roof structure.