Direct Answer
An effective RFI is specific, references exact drawing numbers and detail bubbles, clearly states the conflict or missing information, explains the impact on fabrication schedule, and — when possible — offers one or two suggested solutions for the engineer to choose from. RFIs that are vague or over-bundled get slow responses and vague answers.
Full Explanation
The key elements of a good RFI: (1) Title that summarizes the issue in one line. (2) References — specific drawing number, sheet name, detail bubble, and grid location. (3) Question — one clear, answerable question. (4) Background — two or three sentences explaining the condition that makes the question necessary. (5) Suggested solution — optional, but engineers respond faster when given a choice to accept or modify rather than a blank slate. (6) Schedule impact — state when you need the answer to avoid a production stoppage.
What This Means for Your Shop
Well-written RFIs get faster, cleaner responses. An engineer who receives a crisp, well-referenced question can usually respond in 1–2 days. An engineer who receives a four-page RFI with 12 bundled questions and no drawing references may take 2 weeks — and give an incomplete answer.
Common Mistakes
Bundling multiple unrelated questions in one RFI. Each question should be its own RFI for tracking purposes. Also: failing to reference the specific drawing detail — 'the connection at gridline D-5 at Level 2 as shown on drawing S-3.02 detail 4' is far more useful than 'the column connection.'
Recommended Process
Use a standard RFI template. Require one question per RFI. Include a drawing reference, a clear question, and a response-needed date. Review every RFI before submission to confirm it is specific and complete.