Preconstruction — Bidding & Procurement

Bid Package

The bundle of drawings, specs, and scope a GC sends a trade so subs can bid.

Quick Answer

A bid package is the set of documents a general contractor issues to solicit bids for a specific trade or scope, such as concrete, electrical, or drywall. It bundles the relevant drawings, specifications, scope of work, and bidding instructions for that trade. Well-defined packages let subcontractors bid the same scope, which makes the returned bids comparable and easier to level.

The Full Picture

A bid package exists to divide a whole project into biddable pieces. A subcontractor doesn't bid the entire building — they bid their trade. The GC's job is to carve the drawings and specs into packages that map cleanly to how trades actually contract, so each sub gets exactly the documents and scope relevant to their work and nothing falls between the cracks.

Mechanically, a bid package pulls together the drawings and specification sections that apply to a trade, a written scope of work defining what's included, bidding instructions and due dates, and any relevant addenda, alternates, and unit-price requests. How the project is broken into packages — the 'bid package strategy' — determines whether scope is covered once, twice, or not at all.

In practice, package boundaries are where scope gaps are born. If neither the concrete package nor the masonry package clearly owns below-grade waterproofing, no sub bids it, and the GC discovers the hole during leveling — or worse, after award. Good package definition assigns every piece of work to exactly one trade, with the seams between trades explicitly addressed.

For preconstruction, assembling bid packages is slow, document-heavy work: reading the full set, deciding trade boundaries, and writing scope for each package. It's also high-leverage, because clean packages produce comparable bids and messy ones produce a leveling nightmare. That combination of tedium and importance makes it a natural fit for AI that reads the documents and drafts the scope.

Real Examples

→Trade breakdown: A GC splits a mid-rise into 22 bid packages — earthwork, concrete, steel, envelope, MEP trades, finishes — each with its own scope and drawing set.
→Seam definition: The package strategy explicitly assigns roof flashing to the roofing package rather than sheet metal, closing a seam where scope commonly slips.
→Alternates in a package: The flooring bid package requests a base bid in LVT plus an add alternate for polished concrete, so the owner can compare options at bid time.

Common Misconceptions

People assume: A bid package is just the drawings for a trade.

Actually: Drawings are one part. A complete bid package also carries the relevant specification sections, a written scope of work, bidding instructions, addenda, and any alternates or unit-price requests — the scope narrative is what prevents subs from each assuming a different boundary.

People assume: How you divide bid packages doesn't affect the bids.

Actually: Package boundaries decide whether scope is covered once, duplicated, or missed entirely. A poor breakdown creates gaps and overlaps that show up as un-comparable bids and change orders; a clean one assigns every scope item to exactly one trade.

Does MeltPlan Solve This?

Yes — direct fit

Creating bid packages is a core MeltPlan capability. Its AI reads your construction documents and automatically identifies the scope of work for each trade, producing structured bid packages ready to send to subcontractors — replacing days of manual scope writing. Because the scope is pulled straight from the documents, the seams between trades are defined up front, which is what makes the returned bids comparable.

Build trade bid packages from your documents →

Frequently Asked Questions

What's included in a construction bid package?

The drawings and specification sections relevant to the trade, a written scope of work, bidding instructions and due dates, applicable addenda, and any alternates or unit-price requests. Together these tell a subcontractor exactly what to bid and on what terms.

How does a GC decide how to break up bid packages?

By mapping the work to how trades actually contract and making sure every scope item lands in exactly one package. The strategy balances the number of packages, the seams between trades, and the local subcontractor market, aiming to eliminate gaps and overlaps.

What's the difference between a bid package and a scope of work?

The scope of work is the written definition of what a trade is responsible for; the bid package is the whole bundle — drawings, specs, instructions — that contains that scope and everything else a sub needs to bid. The scope of work lives inside the bid package.

Why do bid packages matter for bid leveling?

Because leveling compares bids within a package. If a package has clear, complete scope, the returned bids cover the same work and level cleanly. If package boundaries are fuzzy, subs bid different scopes and leveling has to reconstruct what each one actually included.

Related Terms

Scope of Work (SOW)The written definition of exactly what a contractor or trade is responsible for.Bid Invitation (ITB)The formal request asking contractors to submit priced bids on a defined scope.Bidding Process (Construction)How work gets priced and awarded, from soliciting bids to signing a contract.Bid LevelingNormalizing subcontractor bids to the same scope so you compare equal numbers.Bid AnalysisEvaluating bids on scope, price, and risk to find the best value, not just the lowest.PreconstructionEverything a contractor does to plan, price, and de-risk a project before ground breaks.Quantity TakeoffMeasuring exactly how much of everything a project requires, straight from the drawings.

More Preconstruction — Bidding & Procurement Terms

Sources

  1. Construction Specifications Institute (CSI) — MasterFormat & bidding requirements
  2. Associated General Contractors of America (AGC) — Project delivery & procurement resources
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