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The Definitive Guide To DW/144 Sheet Metal Ductwork Specification

Since its first publication in 1998, DW/144 – Specification for Sheet Metal Ductwork has defined how contractors should construct, seal and verify low, medium and high-pressure air systems across the UK’s building services sector. Now in its third edition, DW/144 remains the definitive reference for engineers specifying and manufacturing ductwork, providing the minimum requirements for materials, fabrication, and installation quality in accordance with current BS EN and ISO standards.