ABSTRACT

In addition to implied terms imposed on the parties by operation of law and those apparently representing the intention of the parties, terms may also be implied by virtue of custom or usage. To regard customary practice as being based on the presumed intention of the parties is somewhat unrealistic. If a custom is regarded as reasonable, it will bind the parties, even though they might not have been aware of it.62 If the express terms of a contract are inconsistent with some customary practice, then the custom will not be binding, and will be regarded as unreasonable.