Specifications and Drawings Are Both Contract Documents - Conflicts Between Them Create Contractor Claims
Construction documents consist of two co-equal components: drawings (the graphical representation of the design) and specifications (the written requirements for materials, products, and workmanship). Both are contractually binding; the contractor must comply with both. When the drawings and specifications conflict - the drawing shows 8-inch brick masonry units and the specification calls for 4-inch units; the reflected ceiling plan shows 2x4 acoustic tiles and Division 09 specifies 2x2 tiles - the contractor is in an impossible position. They cannot comply with both simultaneously. The contractor's first step is to submit an RFI to the architect identifying the conflict and requesting a resolution. The architect must resolve the conflict through an addendum (if during bidding) or a Change Order or Construction Change Directive (if during construction). Understanding which document governs when conflicts arise, and how to prevent and resolve conflicts, is tested on the ARE PDD exam.
Priority of Documents
AIA A201 Section 1.2 establishes a general rule: in case of conflict, the Contract Documents are complementary (each intends to include all requirements of the other); specific items govern over general items; detailed requirements govern over general requirements. The AIA does not establish a blanket rule that "specifications govern over drawings" or vice versa - the intent of the project is to be ascertained from all the contract documents together. However, many construction contracts include a priority clause that establishes an explicit order: specifications → drawings → supplementary general conditions → general conditions. When in doubt, the architect should resolve the conflict rather than relying on a priority clause, because the priority clause does not eliminate disputes.
Conflict Prevention
The most effective approach is to prevent specification-drawing conflicts rather than resolve them. Prevention strategies: (1) Coordinate specifications and drawings at each major milestone - the specification writer and the production architect should cross-check their documents during 50% CD review and 90% CD review. (2) Maintain a single-source-of-truth for critical specifications - if the finish schedule in the drawings specifies finish codes that reference the Division 09 specifications, ensure the two documents are consistent. (3) In BIM: door and window schedules linked to BIM objects can be exported from the model and compared to specification requirements automatically. (4) 100% CD review: review the complete drawing set AND the specifications together, treating them as one document, before bid issuance.
Key Exam Points
- Specifications and drawings: co-equal contract documents; both binding; contractor must comply with both.
- Conflict: submit RFI; architect resolves through addendum (bidding) or CCD/CO (construction).
- AIA A201: complementary documents; specific governs general; detailed governs general; no absolute priority rule.
- Priority clauses: some contracts establish explicit order; do not eliminate disputes; resolution preferred.
- Conflict prevention: cross-check at 50% and 90% CD; single source of truth; BIM-based schedule-spec coordination.
AREprep's PDD construction documents content covers specification-drawing coordination, conflict resolution processes, priority of documents, and how the architect prevents and resolves discrepancies during both design and construction phases - giving ARE PDD candidates the document coordination knowledge the exam tests in construction document quality control and administration questions.
Study PDD on AREprep
AREprep's PDD flashcards and practice exams are built around the actual NCARB exam guide - so every study session targets what the exam tests.