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APC > Quantification and Costing > Flashcards

Quantification and Costing Flashcards

1
Q

What is NRM 1 and what does it contain?

A

It is the new rules of measurement for Order of Cost Estimating and Cost Planning

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2
Q

What is NRM2 and what does it contain?

A

It is the new rules of measurement for detailed measurement for building works. It superseded SMM7

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3
Q

What is NRM 3?

A

Covers maintenance work

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4
Q

What are the elements under NRM 1?

A
  1. Facilitating Works
  2. Substructure
  3. Superstructure
  4. Internal Finishes
  5. FF&E
  6. Services
  7. Prefabricated buildings and building units
  8. Works to existing buildings
  9. External works
  10. Preliminaries
  11. OH&P
  12. Fees
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5
Q

Under NRM 1, how do you measure internal walls?

A

Measure in m2, ignoring openings for doors etc

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6
Q

Under NRM 1, how do you measure stairs?

A

Measure by number, giving details about the number of stories, the rise of each story, and any description around shape (spiral, continuous, landings)

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7
Q

Under NRM 1, how do you measure finishes?

A

Wall, Floor, and Ceiling finish in m2.
Dado rails, skirting, and cornices in m

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8
Q

Under NRM 1, how do you measure steel?

A

Measured in tonnes

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9
Q

Under NRM 1, how do you measure the facade?

A

Measured in m2, on the centre line with no deduction for openings

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10
Q

Under NRM 1, how do you measure demolition?

A

Typically in m2

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11
Q

What items are included under preliminaries?

A
  • Site accommodation/fit out
  • Records/as-built drawings
  • Staff
  • Plant
  • Temporary services/security
  • Protection/cleaning
  • Insurances/bonds/guarantees
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12
Q

What is a typical risk percentage at each stage?

A

It depends, and a risk register should be used as soon as practicable. But a general rule of thumb would be around
- Stage 2 - 15-20%
- Stage 3 - 10-15%
- Stage 4 - risk schedule (5-10%)

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13
Q

What does IPMS Stand for

A

International Property Measurement Standards

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14
Q

What does IPMS do/contain?

A

It is an international standard for the measurement of GEA, GIA, and NIA

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15
Q

What is the IPMS equivalent for GEA, GIA, NIA?

A

IPMS 1 - GEA
IPMS 2 - GIA
IPMS 3 - NIA

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16
Q

What are the sections of NRM 1?

A
  • Introduction to the use and purpose of the document
  • Rules of measurement for OCEs
  • Rules of measurement for cost plans
  • Tabulated rules for the measurement of elements
17
Q

Why should you use NRM?

A

It is a standard set of rules used throughout the industry and provides a standard basis from which to measure and quantify works, allowing for easier comparison

18
Q

Why might you not use IPMS?

A

If the client requests you base your measures on the Code of Measurement Practice. This may be due to their own internal bench marking data being on a CMP basis e.g. when deciding budget on £/ft2

19
Q

How many ft2 in a m2?

A

10.7639

20
Q

What is GEA?

A

Measure to the external face of the external wall

21
Q

What is GIA?

A

Measure to the internal face of the external wall

22
Q

What is NIA?

A

Measure of usable space. Excludes internal structures (columns, load bearing walls), common spaces (lobbies) and amenities (office toilets, cycle stores)

23
Q

What is the purpose of a BoQ?

A
  • To provide the estimator with an accurate picture of the scope of works
  • It provides the basis for valuation of interim payments and variations
24
Q

What happens if there is an obviously incorrect rate in the BoQ?

A

If the BoQ is contained within the contract with the error, then both parties must stand by said rate, even when valuing variations (unless mutually agreed to change to a more fair and reasonable rate)

25
Q

What are Preambles?

A

An explanation of a document, commonly found in contracts, specifications and bills of quantities. It can help with the interpretation of the document

26
Q

How would you include for a nominated subcontractor in a BoQ?

A

I would include a prime cost sum based on the subcontractor quotation, and then an allowance for any attendances/storage/material costs from the contractor, as well as their OH&P percentage.

27
Q

What is the hierarchy of information?

A
  • BoQ
  • Specification
  • Drawings
28
Q

How would you measure a floor slab in line with NRM1?

A

m2, only making deductions for holes greater than 1m2

29
Q

What is the rule of thumb for when plant is main contractor or a subcontractor item?

A

Typically, if it is used by more than 1 trade, it is a main contractor item

APC (17 decks)

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