Duggan Allied Steel Ltd

Building Categories

• D High rise buildings (offices etc over 15 storeys)
• E Large span portals (over 30m)
• F Medium/small span portals (up to 30m) and low rise buildings (up to 4 storeys)
• G Medium rise buildings (from 5 to 15 storeys)
• H Large span trusswork (over 20m)
• J Tubular steelwork where tubular construction forms a major part of the structure
• M Frames for machinery, supports for plant and conveyors