ASMM 6th Edition 2016 - Free ebook download as PDF File (.pdf) or view presentation slides online. Australian Standard Method of Measurement for Building Works. Aug 28, 2020 The Standard Method of Measurement (SMM) is published by the Royal Institution of Chartered Surveyors (RICS). It was first published in 1922, superseding a Scottish Standard Method of Measurement which was published in 1915. It is now in its seventh edition (SMM7), which was first published in 1988 and revised in 1998.
Code of measuring practice
Code of measuring practice, 6th edition was reinstated on 23 January 2018 after publication of RICS property measurement, 2nd edition. The 6th edition of the code became effective globally from 18 May 2015 when it was incorporated into the first professional statement, that for offices.
New rules of measurement
The RICS new rules of measurement (NRM) suite of documents provides a standard set of measurement rules that are understandable by anyone involved in a construction project. Although principally based on UK practice, the need for a coordinated set of rules and underlying philosophy behind NRM has worldwide application. The NRM suite comprises 3 volumes. NRM 1: Order of cost estimating and cost planning for capital building works The 1st edition, NRM: Order of cost estimating and elemental cost planning, published in February 2009, but several factors prompted a 2nd edition. The opportunity was also taken to simplify and augment certain aspects of the rules. The 2nd edition took effect from 1 January 2013. NRM 2: Detailed measurement for building works This first edition of NRM 2 took effect from 1 January 2013. It replaced the Standard Method of Measurement for Building Works (SMM), its latest version being SMM7. NRM 3: Order of cost estimating and cost planning for building maintenance works NRM 3 provides essential guidance on the quantification and description of maintenance works for the purpose of preparing initial order of cost estimates during the preparation stages of a building project, elemental cost plans during the design development stages (pre-construction) and detailed asset-specific cost plan (post-construction) and throughout the in use phases of a building project or facility.The guidance provided by the rules also aids the procurement and cost control of maintenance works. NRM 3 took effect from 1 January 2015.
How Can Building Information Modelling (BIM) Support The New Rules of Measurement (NRM1) (RICS)
Published January 2014 The research piece investigates the required information from a BIM model to support the RICS New Rule of Measurement order of cost estimating and elemental cost planning, (NRM1). The report reviews the four most well-known tools in the UK market, namely, Solibri model checker, Autodesk QTO, CostX and Causeway BIM measure, based on a set of criteria which is relevant to the NRM1 cost estimating and cost planning exercise. RICS research content is available to everyone, free of charge on the RICS website. Non-members will need to register. RICS members and registered non-members will need to login to see the particular research items. See also the full list of RICS research held on rics.org
Note: This article refers to the measurement of quantities for construction works. For articles about more general measurements, see the list of articles in the measurement category.
See also:
Measured term contract.
Measured work.
Measured quantity.
7Standard measurement conventions
9Related articles on Designing Buildings Wiki
Measurement is the transformation of drawninformation into descriptions and quantities, undertaken to value, cost, and priceconstruction work, as well as enabling effective management.
It is not just about a quantity surveyor producing a bill of quantities for contractors to price during tendering. It is used in both pre- and post-contractwork, helping assess the likely cost of the works, and determining what contractors and subcontractors should be paid for work that has been completed.
During the early design stages, the quantity surveyor (or cost consultant) will measure the dimensions of the building to produce budgetestimates, perhaps based on benchmarking against similar buildings. As the design develops, they will measure more detailed approximate quantities for cost planning purposes, ensuring that the design can be achieved within the budget.
The quantity surveyor then measures the completedworking drawings to produce a bill of quantities. Contractorstender for the job by pricing the work described in the bill of quantities.
The contractor may use measurement for:
Preparing a construction methodology.
Ordering goods and materials.
Procuringsubcontractworks.
Calculating the effects of any variations.
Assessing work done against the construction programme.
Making payments to subcontractors.
Preparing or assessing valuations of workcompleted for interim payments.
The quantity surveyor may undertake measurement for:
Cost control.
Estimating the cost of variations to the work.
Calculating the value of nominated subcontractors’ and suppliers’ work.
Preparing or assessing interim valuations to pay the contractor for work done.
The degree of detail to which construction work can be measured varies according to its use and the stage in the project. In the very early design stages, there is not much detail available, so estimates are based on general parameters, such as:
Functional unit: For example, cost per school pupil, cost per theatre seat, cost per hospital bed, and so on.
Floor area: Cost per sq. m gross floor area.
As the design progresses and more information is known, estimates can become more detailed, such as elemental estimates (for walls, floors, roof, frame, etc.).
During the later stages of the design, the work required to construct the building may be measured by:
Itemised specification: A detailed cost plan which is broken down into a series of elements. Initially, the elemental cost plan will simply be the total construction cost for the project divided into elements on a percentage basis.
Approximate quantities: A first attempt to measure defined quantities from the drawings (or to take them off from a building information model (BIM)). This should be accompanied by a schedule of assumptions made.
Bills of quantities: The work is measured in detail, usually in accordance with a standard method of measurement.
NB: Bills of quantities are normally only prepared on larger projects. On smaller projects, or for alteration work the contractor may be expected to measure their own quantities from drawings and schedules of work. Schedules of work are 'without quantities' instructional lists that allow the contractor to identify significant work and materials that will be needed to complete the works and calculate the quantities that will be required.
It is important that there is a uniform basis for measuringbuilding works in order to facilitate industry wide consistency and benchmarking, to encourage the adoption of best practice and to help avoid disputes.
A standard method of measurement:
Provides a structure for the information that should make up the descriptions.
Defines the unit of measurement for each item - m, m2, m3, number, tonnes, and so on.
Provides rules as to what is included within each item.
Defines the terms used to avoid disputes.
Allows familiarity to develop, so measurement becomes easier and quicker.
Provides a clear system for structuring other project information and cross-referencing specificationinformation with bill of quantityinformation.
The most commonly used standard methods of measurement for building works is NRM2, which replaced SMM7 in 2012. The New Rules of Measurement (NRM) are published by the Royal Institute of Chartered Surveyors (RICS) and prepared by the Quantity Surveying and Construction Professional Group.
NRM2 provides a set of detailed measurement rules for the preparation of bills of quantities or schedules of rates for the purpose of obtaining a tender price. It also deals with the quantification of non-measurable work items, contractor designedworks and risks. Guidance is also provided on the content, structure and format of bills of quantities, as well as the benefits and uses of bills of quantities.
The term ‘taking off’ refers to the process of identifying elements of construction works that can be measured and priced. Those elements can be measured in number, length, area, volume, weight or time, then collated and structured to produce an unpriced bill of quantities. This process is sometimes referred to as ‘working up’.
Always measure gross buildingarea and then deduct items such as exterior walls to find floor spacearea. Always measure on the centre line of the material.
[edit]Calculating girths and centre lines
The centre line is half way between the external girth and the internal girth.
Centre line (CL) = (Internal girth + external girth)/2
CL = Internal girth + (No. of corners) x 2(wall width)/2
or
CL = External girth - (No. of corners) x 2(wall width)/2
[edit]Calculating girths for irregular shaped buildings
EXTERNAL GIRTH
INTERNAL GIRTH
2.00
1.50
1.00
1.00
1.00
1.00
1.00
0.50
3.00
2.50
2.00
1.50
Total = 10.00
Total = 8.00
CL = Internal girth + (No. of corners) x 2(wall width)/2
Number of external corners = 5
Number of internal corners = 1
External corners - Internal corner = 4
This occurs regardless of shape providing the walls encompass 360°.
In the example above, the internal girth was 8.00, and the external girth was 10.00.
Difference = 2.00 m = 4 x 2(wall width)/2
[edit]Buildings with an inset
Girth = 2(length + width) + 2(depth of inset)
= 2(6.00 + 5.00) + 2(2.60)
= 27.20 m
[edit] Important centre lines used for measuringfoundations
Increasingly, softwarepackages are available to assist in the preparation of preparation of bills of quantities, and building information modellingsystems can be used to produce bills of quantities from information already contained within the model.
Advantages of a bill of quantities.
Area.
BCIS elements.
Bill of quantities.
Building People.
Chainage.
Code of measuring practice.
Comparison of SMM7 with NRM2.
Conversion of material volumes.
Cost plans.
Cubic metre.
Gross external area.
Gross internal area.
How to take off construction works.
International Property Measurement Standards.
Ordnance Datum.
Measurement of existing buildings.
Metric system.
Net internal area.
New Rules of Measurement.
NRM 1.
NRM 2.
NRM 3.
Quantity surveyor.
RICS.
Schedule of work.
Units.
Volume.
[edit] External references
‘Willis’s Elements of Quantity Surveying’ (10th ed.), LEE, S., TRENCH, W., Blackwell Publishing (2005)
Standard Method Of Measurement Of Building Works 6th Edition Pdf
Retrieved from 'https://www.designingbuildings.co.uk/wiki/Measurement'
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Related articles
Advantages of a bill of quantities.
Area.
BCIS elements.
Bill of quantities.
Building People.
Chainage.
Code of measuring practice.
Comparison of SMM7 with NRM2.
Conversion of material volumes.
Cost plans.
Cubic metre.
Gross external area.
Gross internal area.
How to take off construction works.
International Property Measurement Standards.
Ordnance Datum.
Measurement of existing buildings.
Metric system.
Net internal area.
New Rules of Measurement.
NRM 1.
NRM 2.
NRM 3.
Quantity surveyor.
RICS.
Schedule of work.
Units.
Volume.
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