4.6 Bid Scope Review, Submission & Withdrawal
Key Takeaways
- Bid-day leveling compares inclusions, exclusions, alternates, and schedule assumptions.
- Every acknowledged addendum and required form must reach the owner before the deadline.
- Bid withdrawal depends on governing procurement law and facts, not every estimating mistake.
4.6 Bid Scope Review, Submission & Withdrawal
4. Competitive Bidding Strategy & Bid Day Procedures
Competitive bidding requires strict adherence to procurement rules, meticulous subcontractor bid analysis, and rapid decision-making on bid day.
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| BID DAY PROCUREMENT TIMELINE |
| |
| 4 TO 6 WEEKS OUT 1 TO 2 WEEKS OUT BID DAY (MORNING) BID SUBMISSION DEADLINE |
| ----------------- ------------------ ------------------- ------------------------ |
| - Issue ITB to Subs - Review Drawings/Specs - Receive Sub Quotes - Finalize Bid Form |
| - Distribute Plans - Attend Pre-Bid Meeting - Scope Reconciliation - Verify Addenda Listed |
| - Perform QTO Takeoff - Track & Acknowledge - Tabulate Trade Bids - Attach 5%-10% Bid Bond |
| All Addenda - Apply G&A and Profit - Submit via Portal/Hand |
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Procurement Documents
- Invitation to Bid (ITB) / Request for Proposals (RFP): Formal notice issued by the owner detailing project scope, location, bid submission deadline, bond requirements, and pre-bid conference dates.
- Instructions to Bidders (AIA Document A701): Establishes the bidding ground rules, including procedures for submitting pre-bid RFIs, criteria for approving material substitutions (typically requiring written submission at least 10 days prior to bid date), bid bond requirements, and bid withdrawal rules.
- Addenda: Formal written or graphic instruments issued by the Architect prior to bid opening that modify, clarify, or interpret the bidding documents. Mandatory Rule: Bidders must formally acknowledge receipt of all issued addenda on their bid proposal form; failure to acknowledge a material addendum can make a bid nonresponsive when the solicitation or public-procurement rule requires acknowledgment. Follow the actual instructions; do not convert a common form requirement into an identical rule for every private procurement.
Bid Day Subcontractor Tabulations & Scope Gaping
On commercial projects, 70% to 85% of total construction cost is performed by specialty trade subcontractors. On "Bid Day," dozens of subcontractor quotes flood the general contractor's estimating department in the final hours before the submission deadline.
- Bid Tabulation Sheets: Estimators create detailed comparison spreadsheets for each trade package (e.g., Division 26 Electrical) to compare competing subcontractor numbers on an apples-to-apples basis.
- Scope Alignment / Unbundling: Estimators must verify that quotes do not contain hidden scope exclusions or omissions (e.g., verifying whether the mechanical sub included low-voltage control wiring, whether the roofing sub included counterflashing, or whether the concrete sub included pump truck fees).
5. Legal Treatment of Bid Errors & Bid Withdrawal
In the high-pressure environment of bid day, arithmetic mistakes, transposition errors, and sub-quote omissions occasionally occur. Construction jurisprudence draws a sharp distinction between clerical/mathematical mistakes and judgment mistakes.
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| CLERICAL ERRORS VS. JUDGMENT ERRORS |
| |
| CLERICAL / ARITHMETIC ERROR (RELIEF GRANTED) JUDGMENT ERROR (NO RELIEF / FORFEITURE) |
| -------------------------------------------- --------------------------------------- |
| - Mathematical transposition of numbers - Underestimating labor hours / productivity |
| - Keying $150,000 instead of $1,500,000 - Misjudging soil stability or weather risk |
| - Omission of an entire trade sub-tab sheet - Speculating on material price escalation |
| -> Legal Remedy: Bid withdrawal permitted -> Legal Outcome: Binding contract or |
| without forfeiting bid bond if prompt forfeiture of 5%-10% bid bond penal sum. |
| written notice is given before award. |
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The Doctrine of Unilateral Mistake
For a Georgia governmental bid governed by O.C.G.A. § 36-91-52, withdrawal without forfeiting bid security requires all statutory elements: clear and convincing written evidence; objective proof in the original bid work papers; written notice before award and no later than 48 hours after opening, excluding Saturdays, Sundays, and legal holidays; good-faith calculation, clerical, typographical, or inadvertent-omission error rather than judgment; and no undue prejudice that materially worsens the position of the entity or other bidders. Private and federal solicitations can use different rules, so first identify the procurement regime.
[!CAUTION] If a contractor seeks to withdraw a bid due to an error in judgment (e.g., discovering after bid opening that local union labor rates are higher than assumed, or that rock excavation will take longer than estimated), the owner will reject the withdrawal. The bidder may face enforcement or bid-security consequences under the solicitation and governing law. On the Georgia public-work rule, a bidder allowed to withdraw cannot resubmit if the project is relet and cannot indirectly benefit by supplying labor or material to the eventual awardee.
Preserve the bid record
Freeze the estimate at submission: retain the signed bid form, timestamp, addenda, alternates, unit prices, subcontractor quotes, scope sheets, takeoffs, assumptions, and the original arithmetic work papers. If an error appears, do not edit the original spreadsheet and present the revision as contemporaneous. Notify authorized company leadership and counsel, preserve metadata, and follow the solicitation's communication method immediately.
Scope leveling is separate from choosing the low number. Compare inclusions, exclusions, quantities, taxes, freight, escalation, hoisting, temporary services, testing, permits, bonds, insurance, schedule, alternates, and addenda. Carry a plug or identified allowance until a gap is resolved; a low bid with an invisible missing scope is not savings. Before transmission, one person reads every required attachment and another verifies the total, bid security, authority, delivery portal, and deadline.
One hour after a Georgia governmental bid opening, a contractor discovers a documented $450,000 trade-tab omission in its original work papers. What is the correct first response under O.C.G.A. § 36-91-52?
What is the best defense against a bid-day scope gap?