A contract subordinate to another contract made or intended to be made between the contracting parties on one part or some of them and a stranger. 1 II. Bl. 37 45. Where a person has contracted for the performance of certain work (e.g.. to build a house) and he in turn engages a third party to perform the whole or a part of that which is included in the original contract (e.g. to do the carpenter work.) his agreement with such third person is called a “subcontract” and such person is called a “subcontractor.”