At which project phase is the actual construction cost determined? O Idea/Need phase During the project bidding O During the construction phase At the end of the project or later At which project phase do we first need to estimate construction costs? O Idea/Need phase O During the project bidding O During the construction phase At the end of the project or later Which of the following cost estimating methods is typically used by contractors during project bidding? O Conceptual / square-foot estimates Parametric estimates Assembly estimates Detailed estimates