preconstruction-estimating

name	preconstruction-estimating
description	Guides PMs through preconstruction activities including bid leveling, value engineering, GMP development, and buyout procedures.

Preconstruction Estimating for Project Managers

This skill helps Project Managers participate effectively in preconstruction activities—understanding processes, asking the right questions, and setting projects up for construction success.

Note: Detailed estimating is performed by professional estimators. The PM's role is review, coordination, and ensuring constructability and completeness—not quantity takeoff or pricing.

Quick Reference: Preconstruction Phase Activities

Phase	PM Role	Key Deliverables
Bidding	Review bid packages, attend scope reviews	Leveled bid analysis, scope gap identification
Value Engineering	Facilitate VE sessions, coordinate owner decisions	VE log, cost-benefit analyses
Constructability	Lead constructability reviews, document issues	Constructability report, RFIs to design team
Prequalification	Review subcontractor qualifications	Prequalification matrix, recommendations
GMP Development	Coordinate estimate completion, review assumptions	GMP proposal, allowance schedule
Risk Planning	Facilitate risk workshops, develop mitigation	Risk register, contingency allocation
Buyout	Execute subcontracts, track savings	Buyout log, commitment schedule

Preconstruction Timeline Overview

Design Development ──────────────────────────────────────────────────────►
     │
     ├── Constructability Reviews (ongoing throughout design)
     │
     ├── Subcontractor Prequalification
     │        │
     │        ▼
     ├── Bid Phase
     │        │
     │        ├── Issue Bid Packages
     │        ├── Pre-Bid Meetings
     │        ├── Receive Bids
     │        └── Bid Leveling & Interviews
     │                  │
     │                  ▼
     ├── Value Engineering
     │        │
     │        └── VE Sessions → Owner Decisions
     │                              │
     │                              ▼
     ├── GMP Development
     │        │
     │        ├── Estimate Compilation
     │        ├── Allowance Identification
     │        ├── Contingency Development
     │        └── GMP Proposal
     │                  │
     │                  ▼
     └── Buyout Phase
              │
              ├── Scope Review with Subs
              ├── Contract Negotiations
              └── Commitment Execution

PM Preconstruction Checklist

Pre-Bid Phase

• Review project scope and specifications
• Identify bid packages and trade breakdowns
• Verify subcontractor prequalification status
• Coordinate bid schedule with estimating team
• Attend pre-bid meetings

Bid Phase

• Review incoming bids for completeness
• Participate in bid leveling sessions
• Identify scope gaps and overlaps
• Attend subcontractor interviews
• Document bid clarifications

Value Engineering

• Attend VE workshops
• Review VE ideas for constructability impact
• Track VE log and owner decisions
• Coordinate schedule impacts of VE items

GMP Development

• Review estimate assumptions
• Verify scope coverage and completeness
• Review allowance sizing and justification
• Understand contingency breakdown
• Review GMP proposal before submission

Buyout Phase

• Review scope transfer from estimate to subcontract
• Coordinate buyout schedule
• Track buyout savings/loss
• Ensure complete scope transfer

Key Metrics to Track

Metric	Target	Red Flag
Bid coverage	3+ bids per trade	<2 bids on major trades
VE acceptance rate	40-60%	<20% indicates poor idea quality
Buyout variance	Within ±3% of estimate	>5% loss indicates scope gaps
Prequalification rate	100% of major subs	Unqualified subs on critical trades
Risk register items	All major risks identified	Unmitigated high-impact risks

Reference Documents

Detailed procedures and templates are available in the following reference files:

Reference	Content
Bid Leveling & Scope Alignment	Leveling spreadsheets, scope matrices, clarification questions, interview techniques
Value Engineering	VE process, idea development, cost-benefit analysis, VE logs, owner presentations
Constructability Review	Review process, system checklists, documentation, design-phase input
Subcontractor Prequalification	Questionnaires, financial review, safety evaluation, reference checks
GMP Development	GMP process, allowances, contingencies, conversion procedures
Risk Register Development	Risk identification, quantification, allocation, mitigation strategies
Estimate Review Procedures	Quantity verification, pricing validation, documentation standards
Buyout Procedures	Buyout tracking, savings/loss analysis, scope transfer, commitment management

Common Preconstruction Issues

Issue	Warning Signs	PM Action
Incomplete scope coverage	Missing bid items, vague allowances	Review scope matrix with estimator
Bid spreading	Wide price variance (>20%)	Verify scope alignment, conduct interviews
Unrealistic schedule	No permit timeline, compressed phases	Push back with historical data
Insufficient contingency	<3% on design-build, <5% on incomplete docs	Escalate risk concerns
Unqualified subcontractors	Failed prequalification criteria	Recommend requalification or rejection
Unaddressed constructability	Design conflicts, access issues	Document and RFI before GMP

Coordination with Other Skills

Related Skill	Handoff Point
Procore Project Management	Bidding module setup, project creation
Subcontractor Management	Post-award subcontractor coordination
Contract Administration	Change orders, payment applications
Schedule Management	Baseline schedule development
VDC/BIM Coordination	Model-based quantity validation