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Estimating

Scope Misses Checklist

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The items on this checklist are the ones senior estimators have learned — expensively — over years of projects. They rarely appear clearly on drawings. They’re easy to miss if you’re focused on what you can see. Use this as a pre-submission QC step on every estimate.

How to use: Run through the applicable section(s) before finalizing any estimate. For each item, either confirm it’s priced, confirm it’s explicitly excluded in the BOE, or confirm there’s an allowance covering it.


Universal — Every Manufacturing Plant Estimate

Section titled “Universal — Every Manufacturing Plant Estimate”

These apply regardless of project type, sector, or whether it’s greenfield or brownfield.

  • Site security and access controls — construction fence, gates, badging. In active plants, security requirements are stricter and cost more.
  • Temporary facilities — job trailer(s), portable toilets, dumpster service, temporary lighting, parking. Are you using the owner’s facilities or providing your own?
  • Temporary utilities — construction power (temporary service from utility vs. tapping existing), water for concrete curing and testing, temporary compressed air for tools. These are separate from permanent utility costs.
  • Superintendent and project manager duration — verify general conditions duration matches the construction schedule. If schedule slips, GC absorbs the overrun unless there’s a change order.
  • Equipment testing media — water, process ingredients, or product needed to run acceptance testing. Confirm who pays for test media and what volume is needed.
  • Winter conditions — cold-weather concrete protection, heating of enclosed work areas, freeze protection on temporary water lines. Midwest/Northeast/Mountain projects need this; Southeast/Gulf often don’t.
  • Photo/video documentation — some owners require weekly documentation; some require drone footage. Confirm requirement before pricing.
  • As-built drawings — redline markups vs. final CAD as-builts are very different costs. Confirm contractual requirement.
  • O&M manual preparation — compiling vendor manuals into organized binders or digital format. Often underestimated for a plant project with 40+ equipment items.
  • Equipment rigging and setting — renting a crane or forklift to set heavy equipment. Budget separately from equipment FOB. A 20-ton mixing vessel may require a 100-ton crane at $5K–$15K/day.
  • Vendor startup and commissioning support — most equipment vendors charge for startup labor separately from the equipment purchase price. Get a cost from each major vendor. Commonly $5K–$40K per equipment item.
  • Owner-Furnished Equipment (OFE) installation — if the owner is buying equipment, you’re still installing it, rigging it, connecting utilities, and punch-listing it. This cost must be in your GMP.
  • Equipment anchor bolts and pads — most heavy equipment requires engineered anchor bolt patterns poured into the slab or structural pads. Not included in the equipment quote; must be in your civil/concrete scope.
  • Equipment skid utilities — the last 10 feet of piping and conduit from the building main to the equipment connection point. Vendors quote to their nozzle; you’re responsible for the stub-in.
  • Electrical testing and commissioning — insulation resistance testing (megger testing), continuity testing, protection relay setting. Separate from the installation work.
  • TAB (Testing, Adjusting, and Balancing) — HVAC air and water balance. Required by most specs; often underestimated or forgotten entirely.
  • Controls integration testing — after individual instruments are calibrated, someone must test the loop: input signal → controller → output signal → valve/actuator response. Separate cost from installation.
  • Spare parts — some contracts require a first-fill spare parts package. Confirm whether it’s contractual and what it includes.
  • All permit fees — building permit + electrical + mechanical + plumbing + fire + environmental. Each is a separate application and fee. Budget 0.5–1.5% of project cost for permit fees.
  • Plan review fees — separate from permit fees; some jurisdictions charge for plan review.
  • Special inspection fees — concrete testing, structural steel welding inspection, special structural inspections. Required by IBC Chapter 17 on most commercial/industrial projects.
  • Building department hold points — inspections that stop work until an inspector signs off. Build these into the schedule or they become change orders.

  • Utility service connection fees — electric utility transformer, water main tap, sewer connection, gas service extension. These are owner-side costs in most contracts, but confirm. A new 2,000A electrical service from the utility can cost $50K–$300K depending on distance and transformer sizing.
  • Fire protection loop — a pressurized underground loop around the building, separate from the building sprinkler system. Required for most manufacturing occupancies. Budget $3–$8/SF of building footprint.
  • Truck apron and maneuvering area — class A trucks need a 90-foot turning radius. If the site plan doesn’t show adequate truck apron depth, the estimate is wrong. Budget $3–$6/SF for truck apron paving + striping.
  • Industrial stormwater permit — for food manufacturing, a stormwater pollution prevention plan (SWPPP) is required and may trigger a separate permit. On some sites, treatment is required before discharge.
  • Detention/retention pond — large impervious surfaces (roofs, parking, truck aprons) create stormwater runoff that must be managed. On a greenfield site, this can be $200K–$1M+ depending on site area and local code.
  • Railroad spur — if the owner wants rail access, the GC scope usually includes the spur from the main line switch to the loading area. See Plant and Warehouse Rail Operations if applicable.
  • Landscaping and fencing — required by most zoning approvals; not always in the project narrative but will be required to get a certificate of occupancy.
  • FSMA Preventive Controls implementation — required before first production. If the owner doesn’t have this program already, budget $15K–$40K for consultant fees to build it. See Commissioning and Startup.
  • USDA FSIS pre-operational inspection — if this is a USDA-regulated facility (meat, poultry, egg products), USDA inspectors must approve the facility before production starts. Budget owner time and potential delay of 4–8 weeks for scheduling.
  • FDA facility registration — required before first interstate food shipment. Administrative only; no fee but add to the startup task list.
  • Wastewater pre-treatment — if the process generates BOD-loaded wastewater (dairy, brewing, meat processing), the local utility may require pre-treatment before discharge. Can range from $50K for a simple grease trap system to $500K+ for a full biological treatment system.
  • Third-party food safety audit prep — SQF, BRC, FSSC 22000, or similar. If the owner’s retail customers require certification, the facility must pass an audit before selling to that customer. Audit prep and first audit cost: $10K–$40K.
  • CIP system — easily missed on early estimates; see Manufacturing Facilities 101. Not included in process equipment quotes.
  • First-fill chemicals — CIP chemicals (caustic, acid, sanitizer), boiler water treatment chemicals, refrigerant first fill, lubricants for equipment. Owner cost but estimator should flag it.
  • Compressed air food-grade certification — third-party testing of compressed air quality (oil, particulate, dew point) is required for SQF/BRC audits and is separate from installation. Budget $2K–$5K per system test.

All greenfield F&B items that apply, plus:

  • As-built drawing verification survey — older facilities often have inaccurate as-builts. If drawings are more than 10 years old, budget a field verification survey before issuing subcontractor packages. Failing to do this and discovering discrepancies during construction is a frequent cause of brownfield overruns.
  • Hazardous materials survey (Phase I/II) — ACM (asbestos-containing materials), lead-based paint, PCBs in old electrical equipment, petroleum contamination in soil under the expansion footprint. Any abatement found: add a separate allowance or exclude with a note. See Brownfield Expansion Playbook.
  • Existing system capacity verification — before pricing tie-ins, confirm what the existing systems can provide: available electrical capacity at the nearest switchgear, compressed air SCFM available at the nearest header, chilled water capacity remaining. These numbers come from the owner’s maintenance team, not from drawings.
  • Tie-in allowance as a separate line item — do NOT bury tie-in work inside each division’s scope. Price it as a separate line item or allowance so it’s visible. Typical: 5–10% of the affected MEP/process scope.
  • Production shutdown scheduling premium — many tie-ins can only be done during scheduled production shutdowns. If those shutdowns are nights or weekends, craft labor costs 1.5–2.0× the day rate. Get the shutdown schedule from the owner’s operations team before pricing.
  • Temporary utility re-routing — when you need to interrupt an existing utility for tie-in, the owner’s production may require that utility to be temporarily re-routed before the cutover. This is a cost item that’s easy to miss.
  • Structural connection design — new structure connecting to existing columns or walls requires an engineer-designed connection. The connection design often isn’t complete at the time of estimate; carry an allowance.
  • Temporary contamination barriers — construction dust and food production cannot mix. Budget for temporary dust walls or demountable cleanroom partitions between construction and production areas. See Brownfield Expansion Playbook.
  • Enhanced housekeeping — active food plants require more frequent cleanup and more stringent protocols during construction. Budget additional cleaning labor.
  • Construction traffic routing — construction equipment and workers cannot move through production areas. Budget for separate access paths, additional temporary lighting in construction routes, and any temporary ramps or floor protection.
  • Existing fire suppression impairment permits — any time you disable part of the existing sprinkler system for tie-in, you need a fire suppression impairment permit and may need a fire watch. Budget for fire watch labor.

  • Controls integrator scope — machine vendors each deliver a standalone PLC. Someone must integrate all the PLCs into a single line control system and connect it to the plant SCADA/MES. Controls integrators are separate contractors, often not included in machine vendor or electrical sub scope. Budget $50K–$200K per line for a typical multi-machine CPG line integration.
  • MES/ERP integration — if the new line must report to a Manufacturing Execution System or ERP, that integration is a software project with its own scope, schedule, and cost. It is almost never included in the machine vendor quote or the construction GMP. Flag it as an owner project cost.
  • Line efficiency ramp-up — at SAT (Site Acceptance Testing), lines rarely run at nameplate speed. Expect 50–70% OEE in the first month. Budget for additional operator time and product holds. Owner cost, but estimator should flag it.
  • SAT acceptance criteria — who pays for repeat testing if the line fails SAT? Clarify contractually. If the GC is responsible for production performance at SAT, this is a significant risk item.
  • Commissioning utilities — running machinery for SAT requires real compressed air, real electrical power, sometimes process water or product. Budget for the utility consumption during the SAT window, which can be 2–4 weeks.
  • Test product or packaging materials — SAT requires running real product or approved substitute through the line. Who furnishes this? If the GC must provide it, budget for it.
  • Floor loading — packaging lines can be heavy (full pallet stretch wrapper + automatic palletizer = 15,000+ lb on a small footprint). Confirm the existing slab can handle concentrated loads before pricing; re-slab cost can be significant.
  • Aisle clearance for AGVs — if the owner is adding automated pallet movement, confirm AGV aisle widths are accommodated in the building design. Minimum aisle widths for most counterbalanced AGVs: 11–13 feet; narrower for reach-type AGVs.
  • Automation charging infrastructure — AGVs, AMRs, and automated pallet movers need charging stations. This is electrical scope that may not appear on the equipment layout drawing.

These are costs that belong in the owner’s budget, not the GMP — but the estimator should confirm the owner has accounted for them. If they haven’t, the project budget is underfunded even if the GMP is correct.

ItemTypical Range
Owner’s project manager / internal project team$100K–$500K+ depending on duration and team size
Commissioning agent (third-party)0.5–2.0% of TIC
Vendor startup support (above equipment PO)$5K–$40K per major equipment item
Qualification / validation (pharma) or food safety commissioning5–8% of TIC (pharma); 2–4% of TIC (F&B)
First-fill spare parts0.5–1.5% of equipment cost
Production trial run / startup waste1–5 days of output value
Employee training by vendors1–2 weeks per equipment type
IT/OT infrastructure (PCs, networks, SCADA servers)$50K–$500K depending on complexity
Land and financing costs (greenfield)Owner-side; not in GMP

See Owner Project Costs for the full framework.


Pre-Submission QC — 5-Minute Final Check

Section titled “Pre-Submission QC — 5-Minute Final Check”

Before submitting any estimate, confirm:

  • Every major scope area has a stated methodology in the BOE (not just a number)
  • Tie-in work is priced as a separate line item (not buried in trades)
  • Vendor startup and commissioning labor has been explicitly included or excluded
  • OFE installation costs are included even though equipment purchase is not
  • Controls integration scope is priced (or confirmed as owner scope)
  • All regulatory milestones with timing risk have been flagged in the risk register
  • Permit fees are calculated (not just estimated as a lump sum)
  • Winter conditions, if applicable to location and schedule, are included
  • Commissioning utilities and test media are accounted for

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