Quantification & Costing Flashcards
What is BIM
BIM is a process for creating and managing information on a construction project throughout its whole life cycle. As part of this process, a coordinated digital description of every aspect of the built asset is developed, using a set of appropriate technology.
What are the advantages/disadvantages of BIM
“Advantages
- Better planning and design
- Easy design changes as it is all in one model
- Minimal re work for site
- Prefabrication through use of model take offs
Disadvantages
- Substantial investment
- Training and staff”
How do you market test a price
“Initially tender
By contacting suppliers, manufacturers and contractors/ sub contractors to understand a comparative cost”
What is IPMS
“International Property Measurement Standards
Attempts to standardise international measurement
Measurement can vary up to 24% depending on what rules are followed”
What is NIA
“Net Internal Area
This is the area of a building that is lettable (usable, excludes communal spaces lifts stairs etc)”
What is GIA
“Gross Internal Area
This is all the area internal to a building from the internal face of external walls”
How do you price labour plan and materials
“You apply a labour rate for the duration of the task dependent on the labour required
You apply a cost for the plant needed either hire or purchase cost
The materials required”
What is a forecast final account
“Forecast final account is a forecast of the final position of a scheme prior to the agreement of the final account
We would provide this to the client through the monthly cost reports so the can understand the final outturn cost”
How do you value materials on site
“Apply the rate of the material on site
Go around site and count materials on site
If it is not unloaded off a lorry it is not valued”
How would you get to a unit price rate for MOS
“Checking with builders merchants
Pricing books (SPONS)
Comparable schemes and rates”
How do you assess time related prelims
“Staff, cabins, security costs
Time related prelims are assessed against progression through the project
100 week programme 4 weeks complete = 4% of cost
certain items such as cabins will have delivery charge, rental cost and collection charge.”
How do you assess fixed prelims
“Building control, S.38 & S.278 payments
Request evidence from the authority or their finance system that these fees have been paid. “
How do you carry out VE
“1. Hold workshop
- Focus on generating ideas
- Sift through the ideas
- Remaining ideas developed
- Recommend/ implement - Provide the client with VE options”
What is needed for a cost plan
"Surveys Budget Procurement route Facilitating works Spec Sustainability requirements Size Risk register Scope VE"
What are facilitating works
Facilitating works - Specialist works needed to complete before works can start - Demo, removal of contamination, soil stabilisation
