Plain-English Guide to Your Carpentry Contract

A material escalation clause allows you to adjust the contract price if the cost of timber or other key materials rises significantly between signing and construction. Without this clause, you are legally obligated to absorb these extra costs yourself, directly eating into your profit margins. Including this protection ensures that sudden market spikes do not turn a profitable job into a financial loss.

Every design modification must be documented through a formal, signed change order before you perform the work. This document specifies the exact adjustments to the design, the additional labor and material costs, and any extensions needed for the project timeline. Proceeding without written approval makes it incredibly difficult to legally recover those extra costs later.

By default, the creator of the original drawings or CAD models owns the intellectual property unless the contract explicitly transfers those rights to the client. Your contract should state that you retain ownership of the designs and that the client is only purchasing the physical, finished product. This prevents clients from taking your custom plans to a cheaper contractor to build.

You must identify and strike out "pay-when-paid" or "pay-if-paid" clauses, which builders use to delay your payment until they receive funds from the end client. It is crucial to negotiate terms where your payment schedule is tied strictly to your own completed milestones rather than the builder’s cash flow. Ensure there is a defined timeframe, such as 14 days from invoice submission, for undisputed funds to be cleared.