Project contingency is simply the process by which you account for uncertainty in that estimation by factoring in any risk. This is then added to the original estimate to ensure the company is prepped for a worst-case scenario that could otherwise derail a project.
This contingency is normally calculated as a percentage. If the phase is 100 days of effort, contingency at 20% would be another 20 days. As the project progresses, the level of risk reduces as the requirements and issues become known, so the percentage will be reduced.
Contingency costs can be incurred during any of the construction project phases. For example, a design error may lead to an unexpected increase in material expenses before ground-breaking. At the same time, a stretch of inclement weather might delay or complicate final detailing and sign-off steps.
What Is a Contingency? A contingency is a potential occurrence of a negative event in the future, such as an economic recession, natural disaster, fraudulent activity, terrorist attack, or a pandemic.
A good rule of thumb is an initial deposit of no more than 10% down or $1,000, whichever is less. Unless the job requires custom-made items or special orders, in which case an initial down payment should be no more than 30% of the total value of the contract.
How Is Construction Contingency Calculated? Typically, most construction projects use a contingency rate of 5% to 10% from the total project budget. This is typically enough to cover any unexpected costs that may arise throughout the project.
Limit your deposit to 10% down or $1,000, whichever is less. (Up to 30% of total contract value in case of custom-made items.)
Unless the job requires custom-made items or special orders, in which case an initial down payment should be no more than 30% of the total value of the contract.