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Free Resources / Missed-Scope Checklist Free Estimating Resource · 2026 Edition

The 2026 Missed-Scope Checklist That Quietly Kills Margins

Most bids don't lose because of bad pricing — they lose because entire line items were never priced. This checklist captures the blind spots that industry sources consistently warn about, each with a step-by-step calculation method.

32 commonly missed scope items 6 trade packages covered $ step-by-step formulas for every item
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Every item below includes a full calculation formula and worked example in the PDF — this page lists what's covered and the typical cost impact if it's missed. Open a package to see its items.

Universal Blind Spots

Universal Blind Spots10 items+
  • 01
    Temporary Works & ProtectionScaffolding, fencing, temp power — 3–8% of total project cost if missed.
  • 02
    Firestopping & Passive Fire ProtectionThe most commonly omitted item in fit-out work — $5,000–$10,000 on a $500K MEP package.
  • 03
    Builder's Work in ConnectionCutting, chasing, sleeving for MEP — $10,000–$15,000 in unplanned labor on a $500K MEP package.
  • 04
    Testing, Commissioning & HandoverCommissioning, TAB, O&M manuals, training — can total $50,000–$100,000+ on a medium project.
  • 05
    Waste, Disposal & ComplianceDumpsters and disposal fees — 5–10% of material cost, $25,000–$50,000 on $500K of materials.
  • 06
    Out-of-Hours & Phasing CostsNight/weekend work runs 1.5–2× normal labor rates.
  • 07
    Permits, Inspections & Approval Fees$5,000–$100,000+ depending on project size and jurisdiction.
  • 08
    Final Cleaning & Punch List Management$10,000–$50,000+ on commercial work.
  • 09
    Temporary FacilitiesTrailers, toilets, security — $5,000–$30,000+ per month on large projects.
  • 10
    Site LogisticsPoor logistics causes 5–15% labor inefficiency — $25,000–$75,000 on $500K of labor.

Concrete Package

Concrete Package4 items+
  • 11
    Formwork Access & ShoringAccess/shoring adds 10–20% on top of formwork cost.
  • 12
    Curing & Protection$5,000–$20,000+; missing winter protection can wipe out the entire concrete margin.
  • 13
    Concrete Waste FactorsUnderprices concrete by 5–10% — $10,000–$20,000 on $200K of concrete work.
  • 14
    Small Concrete Works & Edge DetailingEasily $5,000–$15,000 in labor on a medium project if left unpriced.

Structural Steel Package

Structural Steel Package6 items+
  • 15
    Connection Plates & Angles8–22% of member tonnage, often missed entirely — $24,000–$66,000 on 100 tons.
  • 16
    Anchor Bolts & Hardware$20,000–$100,000+ per project on 50 columns.
  • 17
    Shear Studs$2–$3 installed each, totaling $10,000–$50,000+ on a large composite floor.
  • 18
    Miscellaneous Steel5–10% of total steel tonnage — $15,000–$30,000 on 100 tons.
  • 19
    Steel Waste FactorUnderprices steel by 3–10% — $9,000–$30,000 on $300K of steel work.
  • 20
    Material Protection Before ErectionFireproofing alone can mean $200,000+ on a 100-ton structure.

MEP Package

MEP Package5 items+
  • 21
    Temporary Power & Lighting During Construction$5,000–$30,000+ depending on project size.
  • 22
    Controls, Interfaces & OwnershipControls run 20–40% of MEP cost — $100,000–$200,000 on a $500K MEP scope.
  • 23
    Fire-Rated Penetrations & Firestopping at MEP Openings$10,000–$50,000+ on a medium MEP package.
  • 24
    Seismic Bracing & SupportsAdds 10–20% to MEP support costs — $20,000–$40,000 on $200K of supports.
  • 25
    Equipment Start-Up, Training & Closeout Documentation$10,000–$50,000+ for documentation and training alone.

Finishes Package

Finishes Package4 items+
  • 26
    Protection of Completed Work$5,000–$20,000+ in materials and labor.
  • 27
    Sundry Items$6,000–$10,000 on $200K of finishes if skipped.
  • 28
    Finishes Waste FactorsUnderprices finishes by 5–20% — $5,000–$20,000 on $100K of finishes.
  • 29
    Edge DetailsEasily $10,000–$30,000 in labor on a medium project.

Sitework Package

Sitework Package3 items+
  • 30
    Erosion Control & Dewatering$10,000–$50,000+; dewatering alone can exceed $30,000 on a wet site.
  • 31
    Temporary Access & Roads$20,000–$100,000+ on large sites.
  • 32
    External Works Beyond FootprintCan reach 10–20% of total project cost — $200,000–$400,000 on a $2M project.

How to Use This in Your Next Bid

1
Run your normal takeoff
Quantities from drawings, as usual.
2
Apply waste factors to all materials
Concrete, steel, and finishes waste — items 13, 19, 28.
3
Add connection steel
8–22% added to member tonnage — item 15.
4
Count penetrations
Firestopping and builder's work — items 2, 3, 23.
5
Price temporary items
Power, fencing, trailers, cleaning — items 1, 8, 9, 21.
6
Add commissioning, training, O&M
Items 4 and 25.
7
Check permits and fees
Call the local authority — item 7.
8
Review external works
Landscaping, paving, utilities — item 32.
9
Add a sundries allowance
3–5% of finishes cost — item 27.
10
Document all assumptions in writing
Before submitting.
This checklist consolidates the most commonly reported blind spots across 2024–2026 industry sources. Adapt it to your specific project — it is not a substitute for your own estimating judgment.
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Get every formula and worked example

The full PDF includes the calculation method and a worked dollar example for all 32 items, plus a quick-reference formula sheet.

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