Starting a constructability review early in the design process gives the project team more time to identify and address potential problems. When reviews are left until the final stages, there may be little flexibility to make meaningful changes without affecting the budget or schedule. Iterative reviews during design development can help uncover issues before they become expensive construction problems. Early planning also makes it easier to include the review process in the overall project schedule. How early do you think a constructability review should begin on a major project?