Where do preconstruction teams spend their time?

Estimators and preconstruction teams at mid-to-large GCs spend a disproportionate share of effort on manual data work rather than judgment. Vendor analyses and practitioner reports put bid leveling and scope assembly among the largest sinks (often 40-50 hours of manual leveling and 30-40 hours building an MEP scope package on a single project) before anyone gets to strategic pricing.

This research synthesizes industry benchmarks, vendor case studies, and practitioner accounts into a task-level picture of where precon hours go. Hard public surveys are scarce; ranges below are triangulated estimates. Where formal data are missing, we say so.

For the operational playbooks behind each sink, see why bid leveling eats estimator time, scope generation, and bid coverage.

Key findings

• Bid leveling dominates bid-phase hours. Traditional workflows spend on the order of 40-50 hours per project on data entry and comparison. Estimating managers who run 30-60 leveling exercises a year are looking at 180-360 hours annually on that task alone. Teams under pressure often stop at 2-3 bidders per package because they cannot process more.
• Scope generation is comparably heavy. Complex trades (MEP) can take 30-40 hours to package. Civil and structure add more. A single missing cross-reference can hide a six-figure gap.
• Clarifications, addenda, and coverage are a daily burden. Aggregate hour studies are thin; interviews suggest roughly 10-20% of pre-bid effort across these follow-ups combined.
• Email and admin are nontrivial. One analysis puts chief estimators at ~3.5 minutes per bidding-related email, with about half of those emails adding little value. At ~20 bid emails per day, that is roughly 1.5 hours/day before any takeoff starts.
• Meetings and coordination (kickoffs, trade calls, design reviews, owner meetings) often land around 10-15% of precon time (higher on CMAR and design-build).
• Final QA/QC and handoff still consume ~10-15% after bids close. Gaps here become change orders.

In short, roughly 60-80% of an estimator's time can sit in table-stakes work, leaving little room for higher-value analysis, the same pattern argued in why every construction estimate still starts too close to zero.

Task-level breakdown

Illustrative ranges for a typical hard-bid, mid-sized commercial project (~120-175 precon hours total). Actuals vary by company, complexity, and delivery method.

Share of effort (illustrative). On a representative project, expect something on the order of: scope and takeoff ~25%, bid leveling and analysis ~30%, solicitation and clarifications ~10%, admin and meetings ~15%, QA/QC and carry ~10%, handoff ~10%. Design-build and CMAR usually shift hours toward design coordination and meetings and away from sealed-bid leveling; heavy civil may see fewer bidders per package; teams with mature tooling spend less on data entry.

What the ranges mean

Typical workflow timing (illustrative)

On a multi-week pursuit, hours tend to cluster like this:

1. Plans/specs review and takeoff: early, overlapping with first scope drafts
2. Scope package drafting (all trades): continues as design and addenda move
3. Issue ITBs, track addenda, sub clarifications: mid window through bid close
4. Bid leveling and scope comparison: intensifies in the final week
5. Final QA/QC and carry number: last days before submission
6. Handoff to buyout: after award (or immediately after a win)

The leveling spike is why bid day feels like the whole job: it concentrates weeks of solicitation debt into a short comparison window. That is the mechanism behind why bid leveling eats estimator time.

Methodology and limits

Findings are synthesized from:

• Industry and vendor analyses citing ~40-50 hours of manual bid leveling per project
• Case material on scope-package hours for complex trades (MEP ~30-40 hours)
• Email-workload analyses (~3.5 minutes per bidding-related email)
• AGC/AIA practice guidance and construction-management literature (pre-bid hours are under-documented)
• Practitioner blogs and estimator interviews where formal surveys were unavailable

All figures are estimates or ranges. Meeting share, addenda hours, and handoff percentages are especially thin in public data and should be treated as directional. Delivery method, project size, and tool maturity move the percentages more than any single "industry average."

What GC precon teams can do with this

• Track task-level time in rough buckets (even weekly) so you know whether leveling, scope, or admin is the real bottleneck
• Attack the largest drains first (leveling and scope assembly) with standard templates, exclusion matrices, and coverage checks before bid morning
• Pre-schedule clarifications and addenda distribution so bid day is comparison, not triage (addenda, coverage)
• Capture decisions in writing (carries, plugs, and scope-letter assignments) so institutional knowledge does not live only in one senior's inbox (why estimates start from zero)

Teams that measure these buckets usually find the same pattern: the work that looks like "estimating" is mostly assembly and comparison. The hours left for judgment are what actually protect margin.