Quantification and Costing of Construction Works Flashcards
Why were the New Rules of Measurement introduced?
The names of the NRM documents?
BiLaCo
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.
The structure of NRM1?
IntMeMeTaApp
Why use the NRM?
ComPra
What is the NRM1?
Order of Cost Estimating and Cost Planning
A structured basis for measuring building works for Cost Estimates and Cost Plans
What is GEA?
GROSS External Area
Measured to external face at each floor level
What is GIA?
GROSS Internal Area
Measured to internal face at each floor level.
Excludes:
Open sided balconies
Fire escapes
Canopies
Fuel Stores
[anything which is not fully ‘enveloped’?]
What is NIA?
NET Internal Area
Usable space measured to internal face at each floor level.
Excludes:
Internal STRUCTURAL walls
Internal columns
Areas with headroom less than 1.5m
Lift lobbies
Toilets
Cleaner’s cupboards
Plant rooms
[any area which cannot be ‘Let’ or form part of building management?]
Where are the above terms defined?
RICS’s Code of Measuring Practice, for the purpose of precise definition for accurate and consistent measurement
% of NIA to GIA?
Depends on building type.
Office 70-85% (inefficient to very efficient)
What do you measure in accordance with?
Depends on:
The region
Project
Client
Industrial Sector eg NRM/CESMM
How do you measure Steelwork, NRM2?
Other items associated to measure?
Tonnes
Itemised - length; weight; type
Eg column; ne 25kg/m; ne 1.00m
ErFoRaS.MFiPrTrCo
How do you measure brick walls, NRM2?
Section 14
M2
Thickness, type, method
eg
Common brickwork in cement:lime mortar (1:1:6); wall 215 thick; brickwork
What do you measure in association with brickwork, NRM2?
C.SArBrCaCa
How do you measure steelwork, NRM2?
Section 15
Tonnes
Length, weight, type
eg
column; ne 25kg; ne 1.00m
What is the purpose of a BoQ?
Tendering
To provide the Estimator:
AccAnVaPa
How do you prepare before doing a BoQ?
WhComSuffMeBrTakGenRev
How do you structure a BoQ?
The below is not complete?!
Elemental breakdown of NRM2:
PF
SSI[cost plan]
Ffe
SE[cost plan]
PD
How would you describe Preliminaries?
Items of work required but do not form part of the measured works.
Information required to measure Preliminaries?
DLTSTSMPSADSI
what are the sections of Preliminaries document??
What includes, BoQ, works by Nominated Subcontractor?
Prime Cost Sum:
Quote for the work
Attendance
OHP
What is a PSUM?
Allowance in the BoQ where extent and design not yet known and cost cannot be established
What is a Defined PSUM?
Works with sufficient information to allow for pricing of preliminaries
What is an Undefined PSUM?
Works with insufficient information to allow for pricing preliminaries - entitling EoT and preliminaries [and L&E?]
How do you audit a Cost Reimbursable Contract?
ForRevRecChAdj
What is Simpson’s Rule?
Don’t think below is right:
Formula to calculate approximate area under a curve over a given interval
How do you check items for a BoQ are accurate?
Peer reviews:
All scope captured
Spot checks on quantities
What items are included in a BoQ for a basement?
If piled wall and a clear site:
ExPilExPrepWBCRFFI
How is something unique measured eg a statue?
PSUM with detailed descriptions of the works
How do you deal with groundwater, NRM2?
Section 5:
Item
Original level stated and whether polluted
Post contract level stated and measured
Method of discharge up to contractor
What is a Preamble?
ExInterParBackMeas
What are Method Related Charges?
One Off not forming part of the works and not proportional to the associated works to be carried out eg propping of elevation
What are Time Related Charges?
Method related charges which are proportional to the time taken to carry out the associated works eg plant hire
What are Fixed Charges?
Method related charges that do not vary with time eg service connection charges
