Metal Roofing and Cladding v Amcor Trading

Metal Roofing and Cladding Pty Ltd (the appellant) appealed to the High Court of Australia against a decision of the Full Federal Court. The dispute concerned the interpretation of a clause in a contract for the supply and installation of metal roofing and cladding for a building project. The appellant argued that the contract allowed it to claim payment for work performed even if the project was terminated before completion, whereas the respondent, Amcor Trading Pty Ltd (the respondent), contended that payment was only due upon substantial completion of the works.

The High Court was required to determine whether the contractual clause, which stipulated payment for "work done and materials supplied", entitled the appellant to payment for work performed up to the point of termination, notwithstanding the absence of substantial completion. This involved an analysis of the principles of contractual interpretation, particularly in the context of construction contracts and the implications of termination for breach.

The Court, comprising Gleeson CJ and Kirby J, held that the plain language of the contract, when read as a whole, indicated that payment was conditional upon substantial completion of the works. Their Honours reasoned that the phrase "work done and materials supplied" was not intended to create a freestanding right to payment independent of the overall project completion, but rather to define the scope of work for which payment would be made upon fulfilment of the primary condition of substantial completion. The Court applied established principles of contractual interpretation, emphasizing the importance of giving effect to the ordinary meaning of the words used by the parties in the context of the entire agreement.

The appeal was dismissed.