An Engineer's Estimate is a type of cost estimate that uses a combination of technical engineering knowledge, historical cost data, and industry standards to accurately predict the cost of a proposed construction project. This estimate is typically used in the early stages of a project and is based on the scope of work, general design documents, and any available plans and specifications. It is typically provided by an engineer or cost estimator and can be used by the project owner to develop a budget for the project. There are two types of Engineer's Estimate: the Preliminary Engineer's Estimate and the Final Engineer's Estimate. The Preliminary Engineer's Estimate is an initial estimate of the cost of a project based on preliminary plans and specifications, and is usually used to develop a budget. The Final Engineer's Estimate is a detailed estimate that is based on the final plans and specifications and is used to determine the actual cost of the project.