Project Controls International

FPSO and Topsides

West African Costs

Basis of Estimate

(white papers)


         Project Knowledge = Success


Que$tor Estimates

(white papers)    |   contact:   |   check me out at




- Construction Unit Costs

- FPSO and Topside Costs

- Offshore Fabrication Costs

- Welding Consumables


B.Dev./ Contracts

- Contracts: Quantum Meruit

- Guide to Business Acquisition

- Proposal Development

- Relationship Building

- Video: LATTE (Starbucks)

Mind Maps

- Estimating

- Planning

- Schedule Development

- Schedule Maintenance

- Risk Management



- Constructability

- Document Management

- Estimating Process

- Project Claims and COs

- Project Controls

- Project Execution Plan

- Project Execution Strategy

- Contract Synopsis


- Basis of Schedule

- Number of Schedule Activities

- MS Project vs. Primavera P6

- Planning and Scheduling

- Schedule Extension of  Time

- Typical Primavera P6 Settings

- Updating a P6 Schedule

- Video: Liquidated Damages

- Why Your Project will be Late



- Construction Estimating

- Estimating Course

- Planning and Scheduling

White Papers

- Basis of Estimate

- Communicating Effectively

- Construction Escalation

- Earned Value Management

- Estimating Productivity

- Evaluating Change Orders

- International Multipliers

- Nigerian Content Development

- Project Execution Plan

- Project Risk Contingency

- Project Variables

- Que$tor Estimates

- Risk Analysis Spreadsheet

- Risk Breakdown Structure

- Risk Management

- Spreadsheets vs Databases

- Starting the Project

- Why Project Controls

- Work Breakdown Structure

Interesting Stuff

- Programmable Robot

- Pipe Dimensions and Weights

- Concurrent Database

- LibreOffice Base vs. MS Access

- SharePoint Database

- SAP vs Oracle ERP

- Free Unit Converter

- Motivational Food for Thought

- Passionate about Meetings?

- Video: Project Controls



Contact Us

- Bio

- PMC Consultancy

6. Order of Magnitude Estimates


Order of magnitude estimates are based on limited information and are thus subject to considerable variation


Some types of Order of Magnitude estimate:


1. End-product unit method

2. Scale of operations method

3. Ratio or factors method

- Multiple equipment cost

- Lang factors

- Hand factors

4. Physical dimension method

5. Parametric estimates



Data Collection and Cost Indices:


1. Describing the project in general terms

2. Listing the standard parameters that can me measured

3. Establishing specific design characteristics

4. Determining selected design ratios



Data Collection & Application and Cost & Location Indices


Data Application Phase


1. Listing trade sections or cost elements

2. Listing of total cost of each cost element from the reference project

3. Relating of each cost element to a parameter

4. Determining cost element unit prices

5. Determining the percentage of each cost element in terms of the entire project cost



Cost & Location Indices


1. General purpose cost indices

•Engineering News-Record, Department of Defense


2. Contractor price indices

•Austin Company, Fruin-Colnon, Turner Construction Company


3. Valuation indices

•American Appraisal Company, Boeckh Company


4. Special purpose indices

•Environmental Protection Agency, Bureau of Labor Statistics


5. Location indices

R.S. Means Construction Cost Data, Engineering News-Record



Note: Estimators must carefully document the use of an index so that others may have the same understanding of its use in that particular application.



Link to Section 1. Overview

Link to Section 2. Types of Contracts

Link to Section 3. Types of Estimates

Link to Section 4. Document Control

Link to Section 5. Estimating Data Sources

Link to Section 6. Order of Magnitude Estimates

Link to Section 7. Definitive Estimates

Link to Section 8. WBS (Work Breakdown Structure)

Link to Section 9. Estimating Work Items

Link to Section 10. Bid Wrap Up


Construction Estimating Course - Order of Magnitude Estimates

Email: Friend/colleague?subject=Interesting link - Construction Estimating Course&body=Interesting link from Project Controls International:

Love them or hate them. How to conduct successful productive meetings.

Funny, but true. Video on the functions of Project Controls.


Settings do matter: pick the wrong settings and your schedule’s output will be meaningless.

What the text books didn’t tell you
Primavera P6 Settings
Video - Project Controls

Selected Articles

Tips on Scheduling

50% Science, 50% Art, 100% Communication

Why Project Controls?