Bid Tabulation

The Full Picture

A bid tabulation exists to bring order to a stack of bids arriving in different formats. Without a common table, comparing five proposals means flipping between five documents laid out five different ways. The bid tab standardizes them into one grid — bidders across the top, scope items and totals down the side — so the field can be read in a single view.

Mechanically, the tab captures each bidder's base bid, any additive or deductive alternates, unit prices, and often the bid bond and acknowledgment of addenda. On public work the bid tab is created at the public bid opening and becomes an official record. For a GC's trade bids, it's the estimator's working sheet that consolidates each package's returns.

In practice, the bid tab is the starting point, not the decision. It shows the raw numbers as submitted — which is useful but incomplete, because those numbers cover different scopes. The tab tells you what each bidder wrote down; it doesn't yet tell you whether they're comparable. That's why tabulation precedes, but doesn't replace, leveling and analysis.

For preconstruction, a clean bid tab is the scaffold that leveling builds on. Once every bid is captured in a consistent grid, the estimator can begin adjusting for exclusions and gaps to normalize scope. A disorganized or incomplete tab — missing alternates, un-recorded qualifications — forces that work to start from scratch and invites errors in the comparison.