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OAC’s Constructability Review

One of the biggest positive impacts OAC can have for its’ clients is thorough and deliberate plan review in Pre-Construction. In addition to highlighting drawing errors, or bugs; a focused constructability review of assemblies, interfaces, and details can dramatically reduce the amount of RFI’s issued during construction. Think about the construction project like a puzzle and in order to complete a puzzle, we need a good picture on the box and we require that all the pieces be included in the box. We create value by ensuring the picture is clear as we evaluate and monitor the design and count the pieces, making sure the information is included and the details work.

Typically, there are three (3) opportunities to critically review the design;

Schematic Design (SD), Design Development (DD) and Construction Documents (CD).

Best practice is to carve out time in the design process to do thorough page turns at each phase. Since the level of information is progressively more complete in each phase, the items to look for in each phase will vary. For example, highlighting all the missing details in the SD phase is not productive, the assumption is they will be added in later phases, but exposing dimension or elevation busts is appropriate. Take time to define what is important to review in each phase and communicate it to the review team.  This will expedite the review and demonstrate that we are respectful of time, which in turn motivates reviewers to participate.

Items to Review:


Detailed and deliberate constructability review can create significant value for the Owner. Design issues, clarification of details, or coordination of the How, What, Where, that do not get caught in the design phase turn into RFI’s, which become change orders. More importantly is the risk to project schedules and time. The cost of one minute in Design is exponentially less than one minute during Construction.

Best practice on any project is to carve out time for Constructability reviews. Track the review comments by marking up a hard copy, utilizing different colors by discipline or reviewer, and creating documentation logs. Review Comment forms are a good tool to locate the issues on the drawings, track the process, and verify follow through on the comments, when and by who. Everyone on the project team will acknowledge the benefits and your project will go smoother and be even more successful.

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OAC has a successful history with specialized design and construction because we love what we do. We serve our clients as collaborators, and we design and manage projects that improve where people live, work, learn and play. Because of this, we’ve gathered a superlative staff of professionals who share our core values, and our vision – do what we love in the service of people who love what we do.