Checklists10 min read

Pre-Bid Checklist: What Every Contractor Needs Before Submitting

January 22, 2026

A systematic pre-bid review process can improve your win rate by 30% and prevent costly post-award surprises. This comprehensive checklist ensures nothing falls through the cracks before you submit your next proposal.

Phase 1: Initial Review (Days 1-2)

Project Documents

Obtain complete plan set with all sheets (Architectural, Structural, MEP, Civil, Landscape)Download specifications (all divisions)Review all addenda and clarifications (verify nothing supersedes your drawings)Confirm you have the latest revision of all documentsCheck for missing sheets or callouts to other documents

Contract Terms

Read contract type and terms (lump sum, GMP, cost-plus)Review payment terms and retainage requirementsIdentify bonding and insurance requirementsCheck for liquidated damages clausesNote any unusual liability or indemnification languageVerify bid submission format and deadline (paper, electronic, time zone)

Site Investigation

Conduct site visit and document conditions with photosAssess site access, staging areas, and laydown spaceReview geotechnical reports and identify subsurface risksCheck for existing utilities, overhead lines, and easementsEvaluate environmental concerns (wetlands, contamination, protected species)

Phase 2: Detailed Takeoff (Days 3-7)

Quantity Verification

Complete takeoff organized by CSI divisionCross-check architectural vs. structural drawings for conflictsVerify MEP systems match floor plans and reflected ceiling plansInclude waste factors appropriate for material type and crew experienceAccount for temporary works (shoring, scaffolding, barricades)Double-check high-value items (concrete, steel, major equipment)

Scope Definition

Create detailed scope of work documentList all exclusions and clarificationsIdentify owner-furnished, contractor-installed (OFCI) itemsDocument all assumptions made during takeoffNote ambiguous or conflicting information requiring clarification

Phase 3: Pricing (Days 8-12)

Material and Labor Costs

Obtain quotes from at least 3 suppliers for major materialsVerify pricing validity period extends through project startApply current local labor rates with appropriate burdenAdjust productivity rates for site-specific conditionsInclude delivery, freight, and storage costs

Subcontractor Quotes

Solicit bids from minimum 3 qualified subs per tradeVerify subcontractor scope matches your expectationsConfirm subs can meet bonding and insurance requirementsCheck references for unfamiliar subcontractorsDocument all clarifications and assumptions with each sub

Indirect Costs

Calculate general conditions (supervision, trailers, utilities)Include permits, fees, and testing costsAdd equipment rental and small tools allowanceApply home office overhead percentageInclude risk-based contingency (3-20% depending on project type)Determine competitive profit margin (5-15%)

Phase 4: Final Review (Days 13-14)

Quality Control

Conduct peer review of estimate with second estimatorCompare total cost to conceptual budget and market expectationsVerify all addenda have been incorporatedCheck for mathematical errors or transposition mistakesConfirm units are consistent (SF vs SY, LF vs EA)

Final Documentation

Prepare comprehensive proposal with all required formsInclude detailed scope, exclusions, and clarificationsAttach required certificates (license, insurance, bonds)Have authorized representative sign all bid formsArchive complete bid package for future reference

Submission

Verify submission address, format, and deadlineAllow buffer time for delivery or upload issuesObtain proof of submission (receipt, timestamp, confirmation email)Keep backup copy in case original is lost or corrupted

Pro Tips for Bid Success

•Start early: Don't wait until the last week. Complex projects need 3-4 weeks minimum for thorough analysis.
•Ask questions: Submit RFIs for ambiguous items. It's better to clarify than to guess wrong.
•Leverage technology: Modern estimation platforms can reduce takeoff time by 70% while improving accuracy.
•Trust your process: Systematic approaches catch errors that rushed estimates miss.
•Know when to walk: If the risk/reward ratio doesn't make sense, it's okay to pass on a bid.

Streamline Your Bid Process

OBDNC OS helps contractors complete thorough, accurate estimates faster. Our platform automates time-consuming tasks so your team can focus on strategic decisions that win projects.