Bid invitations that reach the right subs
BuilderStack turns bid day from a blast-email gamble into a controlled process. Build bid packages from your drawings, invite subcontractors by trade and location, and track who's opened, downloaded, and responded — in real time.
Every invited sub gets a clean portal with the documents they need: plans, specs, addenda, and the bid form. No FTP links, no 'did you get my email' phone calls.
- Trade-specific invitation lists with response tracking
- Automatic addenda distribution to all invited bidders
- Document access audit — see who viewed what
- Bid form standardization for apples-to-apples proposals
Coverage tracking before bid day surprises
The worst time to find a coverage gap is 2pm on bid day. BuilderStack's bid board shows coverage by division and trade at a glance — which scopes have three bids, which have one, which have zero — so estimators can chase gaps days ahead instead of hours.
Level bids without the spreadsheet risk
Bid leveling in spreadsheets breaks: scope exclusions get missed, columns shift, and the cheapest bid wins by omission. BuilderStack normalizes proposals side-by-side, flags scope gaps and exclusions, and keeps an audit trail of every leveling adjustment.
Prequalification scores ride along with each bid — so the low number is evaluated against financials, safety record, and past performance, not taken at face value.
- Side-by-side scope and exclusion comparison
- Prequalification data (EMR, financials, backlog) per bidder
- Leveling adjustments logged and auditable
- Award workflow that hands off to contracts
Frequently Asked Questions
What does construction bid management software do?
It manages the preconstruction bidding lifecycle: assembling bid packages, sending invitations to bid (ITBs), tracking subcontractor coverage by trade, distributing addenda, receiving proposals, leveling bids side-by-side, and awarding scopes. BuilderStack covers the full cycle plus subcontractor prequalification.
How do I get better bid coverage from subcontractors?
Coverage improves when subs get documents early, access is frictionless, and follow-up is targeted. BuilderStack shows real-time open/download/response status per invite, so estimators chase the subs who haven't engaged instead of re-sending to everyone.
What is bid leveling?
Bid leveling (bid tabulation) is comparing subcontractor proposals on equal footing — normalizing scope inclusions, exclusions, and alternates so the lowest complete bid is identifiable. BuilderStack builds leveling sheets automatically from standardized bid forms.
Can subs bid without an account?
Invited subcontractors access the bid portal through a secure link — they can view documents, download plans, and submit proposals without buying or configuring anything.
See Bid Management on your project
BuilderStack is free during early access. Import a project and run your first week on the platform.