Bid Clarification

A question and answer that removes ambiguity from what bidders are pricing.

Quick Answer

A bid clarification is a formal question or explanation that resolves ambiguity in bid documents or in a submitted bid. Before bid day, bidders submit questions that are answered in writing, often through an addendum. After bids arrive, the GC asks bidders to clarify scope, exclusions, or assumptions. Clarifications keep everyone pricing the same work.

The Full Picture

Bid documents are never perfect. Drawings conflict with specs, details are missing, and scope boundaries between trades are fuzzy. When a subcontractor or GC estimator hits one of these gaps during bidding, they have two options: guess and price the guess, or ask. A bid clarification is the formal version of asking, and it exists so that every bidder prices the same interpretation instead of their own.

Mechanically, clarifications flow in two directions. Before bid day, bidders submit written questions (often called pre-bid RFIs) to the GC or the design team by a published cutoff date. Answers that change or interpret the documents are issued to all bidders, usually by addendum, so no one gets a private advantage. After bids are received, the GC sends clarification requests to individual bidders to confirm what their number includes, what it excludes, and which assumptions it rests on.

In practice, post-bid clarifications are where bid leveling gets done. A mechanical sub may qualify their bid with 'excludes controls wiring' or 'based on one mobilization.' The estimator lists these qualifications, asks each bidder to confirm or price the missing items, and records the answers so the bids can be compared on equal scope. A clean clarification log becomes part of the eventual subcontract scope.

For preconstruction, the risk is unanswered or undocumented clarifications. A verbal answer on a phone call that never makes it into an addendum or a scope letter tends to resurface as a change order. Good practice is a written log for every question, a single channel for answers, and a rule that anything affecting price goes to all bidders.

Real Examples

→Pre-bid question: An electrical bidder asks whether the fire alarm system is in their scope or a separate package; the architect answers in Addendum 2 so all electrical bidders price the same boundary.

→Post-bid exclusion: During leveling, the GC notices the low drywall bid excludes firestopping and asks the sub to either price it or confirm the exclusion before award.

→Assumption check: A concrete sub's bid assumes winter protection is by others; the clarification request forces that assumption into the open so the GC can carry it elsewhere in the estimate.

Common Misconceptions

People assume: A bid clarification is just an informal phone call with the estimator.

Actually: Informal answers are how scope disputes start. On a competitive bid, any clarification that changes what bidders price should be answered in writing to all bidders, usually by addendum, and post-bid clarifications should be documented in the scope letter or subcontract.

People assume: Clarifications and qualifications are the same thing.

Actually: A qualification is a condition the bidder attaches to their own bid, such as an exclusion or assumption. A clarification is the question-and-answer process that surfaces and resolves those conditions, or resolves ambiguity in the documents themselves.

Does MeltPlan Solve This?

Partially — adjacent

Partially — MeltPlan surfaces the exclusions, qualifications, and scope gaps in subcontractor proposals, which is where most post-bid clarifications come from. Its bid leveling reads each proposal and flags what a bidder left out or conditioned, so estimators know exactly what to ask. MeltPlan does not run the question-and-answer exchange with bidders or issue answers; that communication stays with your team.

Find the exclusions that need clarifying →

Frequently Asked Questions

What is the difference between a pre-bid and a post-bid clarification?

A pre-bid clarification resolves ambiguity in the bid documents and is answered to all bidders, typically through an addendum. A post-bid clarification is a question to an individual bidder about what their submitted number includes or excludes, used to level bids before award.

Who answers bid clarification questions?

Questions about design intent go to the architect or engineer, usually routed through the GC or owner. Questions about scope split, schedule, or bidding logistics are often answered by the GC. Either way, answers that affect price should be distributed to every bidder in writing.

Is there a deadline for bid clarification questions?

Most bid instructions set a question cutoff, often several days before bids are due, so answers can be issued by addendum in time for bidders to price them. Questions received after the cutoff may go unanswered.

How do bid clarifications relate to bid leveling?

Leveling depends on them. The estimator uses clarifications to confirm what each bidder included, fill gaps with plugs or priced adds, and bring every bid to the same scope so the comparison is fair.

Should clarifications be included in the subcontract?

Yes. Clarified inclusions, exclusions, and assumptions should be captured in the scope exhibit or a scope letter attached to the subcontract, so the agreed interpretation survives past bid day.