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Chapter 5 Cost Estimating and Bidding. BCN 4708 Fall 2008. Estimating and Bidding. Estimating process Determine labor, material and equipment needs How much subcontracting? Assign prices to quantities Add in: indirect costs, overhead and profit ASPE AACE. Estimating and Bidding.

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estimating and bidding
Estimating and Bidding
  • Estimating process
    • Determine labor, material and equipment needs
    • How much subcontracting?
    • Assign prices to quantities
    • Add in: indirect costs, overhead and profit
  • ASPE
  • AACE
estimating and bidding1
Estimating and Bidding
  • Lump-sum Estimates
  • Unit-price Estimates
  • Approximate Estimates p.79
    • Cost-per Function
    • Area Cost Estimate
    • Volumetric Cost Estimate
    • Modular Takeoff Estimate
    • Partial Takeoff Estimate
    • Panel Unit Cost Estimate
    • Parameter Cost Estimate
estimating and bidding2
Estimating and Bidding
  • Bidding Procedures
    • Private
    • Public
  • Advertisement for Bids
    • Private
    • Public
    • Reporting services
estimating and bidding3
Estimating and Bidding
  • Decision to Bid
  • Set-Asides
  • Qualification
  • Deposits
  • Availability of Plans and Specs
  • Bidding Period
  • Instruction to Bidders
  • Preliminary conditions
  • Jobsite Visit
  • Bid invitations
estimating and bidding4
Estimating and Bidding
  • Quantity Surveys / Takeoffs
    • Architect / engineer
    • Contractor
  • Professional Quantity Surveyors
  • Cost Summaries fig 5.4 / 5.5
  • Material costs
  • Direct labor cost
  • Indirect labor costs
estimating and bidding5
Estimating and Bidding
  • Equipment Costs
  • Equipment Expense
  • Equipment Rates
  • Ownership and Operating Costs
    • A = C(n+1) + S(n-1) / 2n
  • Equipment production rates
estimating and bidding6
Estimating and Bidding
  • Subcontractor bids
  • Bid Depositories
  • Allowances
  • Overhead
    • General Overhead
  • Project Time Schedule
  • Markup 5 – 20
estimating and bidding7
Estimating and Bidding
  • Lump-sum Recap Sheet
  • Bid Changes
    • Change sheet
  • Unit price recap sheet
    • Factor
  • Contract Bond
    • Surety
    • Performance or payment bond
  • Addenda
estimating and bidding8
Estimating and Bidding
  • Scope Bidding
  • Computer-Based Estimating
  • Range estimating
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