Quantification & Costing Flashcards
What is NRM?
The new rules of measurement
What is the purpose of NRM?
To provide standard measurement rules for estimating, cost planning, procurement and whole life costs of a building
How do you quantify steel beams?
Linear metre of the beam, multiplied by kg/m and divide by 1000 to get tonnage
How do you quantify concrete slabs?
Measure the area of the slab multiplied by the depth to get m3
What is the RICS Code of measuring practice?
A UK measurement guidance note produced by the RICS that defines NIA, GIA and GEA and how to measure them
What is the purpose of the COMP?
To provide precise definitions that allow the accurate measurement of building, the calculation of sizes and the description on a consistent basis.
What is the IPMS?
International property measurement standards.
What is the purpose of the IPMS?
Designed to satisfy the needs of the market by focusing on the purpose to which measurement can be applied
Why was the IPMS introduced?
To provide a consistent way to measure property around the world.
Addressing inconsistencies in measurement and give transparency of property data.
What’s the difference between IPMS and COMP?
IPMS is a set of rules for measurement while COMP is a guidance note that provides definitions for measuring properly.
IPMS has different labels.
What is GEA in IPMS?
IPMS 1 (Exterior)
What is GIA in IPMS?
IPMS 2 (Interior)
What is NIA in IPMS?
IPMS 3 (interior)
Define GIA
Area of a building measured to the internal face of the perimeter wall at each floor level
Define NIA
The useable area within a building measured to the internal face of the perimeter wall at each floor level
Name 3 differences between IPMS and COMP
IPMS includes window reveals
IPMS includes columns in NIA
IPMS includes non-structural walls in NIA
How do you quantify differently between feasibility estimates and cost plans?
Feasibility estimates are usually based on functional units and cost plans are on a more competent basis e.g. elemental.
What does BCIS stand for?
Building cost information service
What level of BCIS location indices are there
Regional
County
District
What is a provisional sum?
An allowance made in a cost plan where the extent of the works isn’t defined enough at tender stage to accurately price.
What is a defined provisional sum?
Allowances made for works with incomplete design at the time of tender but the extent of works is known enough to make allowance for programme and management
What is an undefined provisional sum?
Allowances made for works with incomplete design at tender and insufficient information to make an allowance for programme and preliminaries.
What is a prime cost sum?
Cost calculated by the cost consultant for the supply of work or materials to be provided by the contractor or supplier nominated by the client.
Main contractor adds their mark up.
What are day works?
A method of valuing works based on the labour, plant and materials with a mark up for overheads and profit.
When would day works be used?
When unforeseen circumstances are encountered during facilitating works.
Got instructed works where there are comparative rate in a BOQ or CSA.
What are the ways dayworks can be priced?
Percentage addition
All-inclusive costs
What is percentage addition?
Prime cost which has a percentage added for OHP and incidental costs
What are all-inclusive costs?
Quoted at tender and included in the contract documents. They include ohp either fixed or subject to inflation.
What information do you need for a defined provisional sum?
Description
Location
Quantity
Method of works
What is NRM1?
Order of cost estimating and cost planning for capital building works
What are the 4 parts of NRM1?
1: Context and definitions
2: How to prepare order of cost estimates
3: How to prepare an elemental cost plan
4: Tabulated rules of measurement for the preparation of cost plans
What is NRM2?
Detailed measurement rules for building works
What is NRM3?
Order of cost estimating and cost planning for maintenance of building works
What are the sources of cost data that can be used?
Primary
Secondary
First principles
What is primary cost data?
You collect the information from market testing, recent tenders.
Accurate as you know the scope and date of the costs.
What is secondary cost data?
Data from external sources such as projects you haven’t worked on and pricing books e.g. SPONS, benchmarking
What is first principles?
Rates built up from key components of an element.
Why should you use NRM1?
Proves best practice has been used when preparing cost estimates and cost plans.
