ASTM E Standard Classification for Cost Estimate Classification System. ASTM Standard E, “Standard Classification for Cost Estimate Classification. System” DOI: /E, as established by ASTM International. Find the most up-to-date version of ASTM E at Engineering

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LCVM Consultants Inc. Standards and References

This is important because details frequently change during the natural course of designing a construction job and each detail has an effect on cost. There are also references to specific industries, for cost estimate classification as applied in: The standard will e25516 project team members to differentiate between each different cost estimate resulting from these changes.

Each development milestone in a project requires an increasingly more detailed cost estimate. Team members who would benefit from the standard include clients, financiers, project managers, architects, engineers, contractors, and others.

Historical Version s – view previous versions of standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Using a new ASTM standard will improve communication among the many stakeholders that are involved in preparing, evaluating and using cost asstm for new construction projects.


Huxley notes that the subcommittee is particularly interested in experience reports from anyone who has used the standard, as well as reports on observed accuracy rates in specific areas and industries. Link to Active This link will always route to the current Active version of the standard.

The various parties that use cost estimates often misinterpret the quality and value of the information available to prepare cost estimates, the various methods employed during the estimating process, the accuracy level expected from estimates, and the level of risk associated with estimates.

Using E will ensure that the validity of all cost estimates made along the way can be easily understood by everyone on the team. This classification is intended to be generic and so provide a system for the classification of cost estimates in any industry. Skip to main content.

Improving communications about estimate classifications reduces business costs and project cycle times by avoiding inappropriate business and financial decisions, actions, delays, or disputes caused by misunderstandings of cost estimates and what they are expected to represent.


Estimate classifications provide valuable e251 reporting information when used as an adjunct to Practice E Use of this classification will improve communication among all the stakeholders involved with preparing, evaluating, and using cost estimates. According to Anthony Huxley, a consultant and E06 member, E will fill a great need in the construction industry.

Using this classification will help those involved with project estimates to avoid misinterpretation of the various classes of cost estimates and to avoid their misapplication and misrepresentation.