Quantification and Costing Flashcards
Questions
What is your understanding of the ICMS?
ICMS provides a high-level structure and format for classifying, defining, measuring, recording, analysing and presenting life cycle costs and carbon emissions associated with construction projects and constructed assets.
What measure standards are you aware of?
- NRM
- IPMS
- Code of measuring practice
What do you know about IPMS
IPMS are divided into three (3) fundamentally different groupings as shown below:
1. IPMS 1 and IPMS 2 are external and internal measurements respectively for the whole or part of a Building.
- IPMS 3.1 and IPMS 3.2 are external and internal measurements respectively required for exclusive occupation.
- IPMS 4.1 and IPMS 4.2 are internal measurements required for selected areas respectively including Internal Walls and Columns and excluding External Walls and Columns
What is the difference between imps and code of measuring practice?
Unlike the Code of Measurement Practice – IPMS contains separate measurement rules for different classes of buildings. Currently the classes covered by IPMS are;
Residential
Offices
Retail and
Industrial
What do you know are NRM?
- provides a standard set of measurement rules and essential guidance for the cost management of construction projects and maintenance works
- Comes in three volumes
Can you tell me what the three volumes of NRM are and what are there uses?
- NRM 1: Order of cost estimating and cost planning for capital building works
- NRM 2: Detailed measurement for building works
- NRM 3: Order of cost estimating and cost planning for building maintenance works
What is the internal dominant face?
Surface comprising more than 50% of the surface area for each vertical section forming an internal perimeter
On your Victoria place project, you mention about pricing the structural steel works, what considerations did you make when costing?
- I considered the quantity and sized of the steel.
- Location of the steels
- Fixings required.
- Access
- Duration
- Fire protection requirements
On the Meadowcroft project, how did you go about costing for the rebar for the pile of the foundations?
I used a rebar factor of 125kg/m3 of concrete base information provided by the structural engineer
On Linwood Crescent why did you advise the client on the bill of approximate quantities?
By opting to provide Approx Quantity it passes the onerous onto the contractor to review the drawings and ensure the quantities are accurate can also be use to value variations on the project
What is the structure of MRN 2?
- General information
- Detailed measurement for building works
- Rules of measurement of building works
- Appendices
What is the structure of MRN 1?
- General information
- Measurement rule for order of cost estimating
- Measurement rules for costing planning
- Tabulated rules of measurement for elemental cost planning
- Appendices
What is the structure of MRN 3?
-General introduction
- Measurement rules for building maintenance works
- Measurement rules for order of cost estimating
- Cost planning for R&M works
- Calculation of annualised cost for R&M works
- Elemental cost planning
- Appendices
Why is it important to measure the works in accordance with industry standard and best practice?
- To provide consistency and greater accuracy of pricing
- To ensure ensure that all parties price on the same basis and therefore reduce the risk of disputes
What are the key heading for contractor preliminaries identified in NRM 2?
-Site accommodation
- Site records
- Temporary services
- Main contractor cost items
- Management and staff
- Mechanical plant
How do you deal with risk in a cost plan?
Risk should be properly considered assessment of risk, consider completeness of design and other uncertainties such as extent of site investigation undertaken
What is the 4 categories of risk under MRN?
- Design development rosk
- Employer other risk
- Construction risk
- Employer change risk
What is the difference between fixed and time related prelims?
Fixed price prelims are one-ff costs whereas timed prelims are dependent on duration
Time related - tower crane weekly hire
-Fixed purchasing site security equipment
What is inflation?
Sustained increase in the general price of resources
An allowances include in the OCE or cost plan for fluctuations in the basic prices of labour plant and equipment and materials
What are the two types of inflation under MRN 1?
Tender Inflation - allowance base base date of costing to tender return
Construction Inflation - allowance from tender return to mid point
What does TPI stand for?
Tender price indices
What is a BoQ?
Broken down in all components of a building and details the exact quantities
Why would you use a BoQ instead of a schedule of works?
SoW breaks the works down into less detail that a BoQ and does not contain any quantities for specific works.
What is GEA?
- Gross External Area.
- This is the area of the building measured externally at each floor level
