Unit 11 Measurement And Estimating – Define Standard

Unit 11 Measurement & Estimating

Unit code – A/615/1397
Credit value – 15

Learning Outcome 1: Define standard measurement techniques used for taking-off quantities for estimating purposes

Learning Outcome 2: Perform taking-off techniques in the production of a range of quantities for a structure

Learning Outcome 3: Interpret the principles and techniques of estimating in compiling a final price

Learning Outcome 4: Prepare an estimate for a work activity.

Taking-off:

Substructure elements, foundations: mass fill, pad and raft, excavation works, filling, ground floors, drainage, manholes, service installations, road kerbs, channels and foundations, road surfacing, external works

Superstructure elements, walls, intermediate floors, roof structures and coverings, in situ concrete works, masonry, steel framed commercial structures, pre-cast concrete frames, building services, mechanical and electrical installations.

Application:
To construction projects (simple work sections, trade sections), use of annual techniques, use of software for taking-off dimensions, use of digitisers to take dimensions from drawings, integration packages using CAD, and estimating.

LO3 Interpret the principles and techniques of estimating in compiling a final price
Collection of data:
Characteristics, labour, labour costs, plant rates data, company data on output
levels, cost of materials, terms of supply, delivery costs, handling, wastage, conversion.
Processes and procedures for estimate:
Factors affecting prime costs, method statements (effect on estimating), use of standard reference documents, coverage rules for units of work, e.g. Standard
Method of Measurement (SMM) 7, New Rules of Measurement (NRM), Civil Engineering Standard Method of Measurement (CESMM), and any other
measurement rules used in the specific form of locale measurement rules.
Calculation of unit rates in building up an estimate:
Labour, plant and materials, overheads and margin, outputs: recorded historically, price books, assimilated, LOSC Labour only sub-contractor (LOSC) rates, governed by plant outputs and capacities
Plant: purchase or hire options
Materials: wastage, purchase price, delivery costs. Adjustments to unit rates in building up an estimate:
Historical rates adjusted for time, inflation, risk, technology, alternative plant, location, price increases.

LO1 Define standard measurement techniques used for taking-off quantities for estimating purposes

Techniques for quantifying budgets:
Preliminary, intermediate and final estimates for clients budgets, Project Comparison Estimating using historical project cost data, use of Building Cost Information Service (BCIS), square meter and cubic meter estimates, elemental estimating, approximate quantities techniques, measurement using dimension paper, measurement using software packages.
Standard methods of measurement for taking-off quantities:
For construction, civil engineering and building services engineering, format, coding schemes, measurement rules, dimension sheets
Standard Method of Measurement 7, New Rules of Measurement, NRM 1 Order of cost estimating and elemental cost planning, MRM 2 Detailed measurement for building works, NRM 3 Order of cost estimating and cost planning for building maintenance works, Civil Engineering Standard Method of Measurement 4 (CESMM4), FIDIC contracts for use in international organisations.
Uses:
Project stages, clients budget, preliminary stages, project comparison stages, final design stage, preparation of bills of quantities for the tendering for work, sub-contract and supply chain packages, final account, maintenance and refurbishment works.

LO2 Perform taking-off techniques in the production of a range of quantities for a structure
Measurement techniques and processes:
Techniques e.g. traditional (using dimension paper), abstraction of quantities,
associated working up processes and preparation of bill of quantities pages, computer aided systems, use of digitisers.

Taking-off:
Substructure elements, foundations: mass fill, pad and raft, excavation works,
filling, ground floors, drainage, manholes, service installations, road kerbs, channels and foundations, road surfacing, external works
Superstructure elements, walls, intermediate floors, roof structures and coverings, in situ concrete works, masonry, steel framed commercial structures, pre-cast concrete frames, building services, mechanical and electrical installations.

Application:
To construction projects (simple work sections, trade sections), use of annual techniques, use of software for taking-off dimensions, use of digitisers to take dimensions from drawings, integration packages using CAD, and estimating.

LO3 Interpret the principles and techniques of estimating in compiling a final price
Collection of data:
Characteristics, labour, labour costs, plant rates data, company data on output
levels, cost of materials, terms of supply, delivery costs, handling, wastage, conversion.
Processes and procedures for estimate:
Factors affecting prime costs, method statements (effect on estimating), use of standard reference documents, coverage rules for units of work, e.g. Standard
Method of Measurement (SMM) 7, New Rules of Measurement (NRM), Civil Engineering Standard Method of Measurement (CESMM), and any other
measurement rules used in the specific form of locale measurement rules.
Calculation of unit rates in building up an estimate:
Labour, plant and materials, overheads and margin, outputs: recorded historically, price books, assimilated, LOSC Labour only sub-contractor (LOSC) rates, governed by plant outputs and capacities
Plant: purchase or hire options
Materials: wastage, purchase price, delivery costs. Adjustments to unit rates in building up an estimate:
Historical rates adjusted for time, inflation, risk, technology, alternative plant, location, price increases.

LO4 Prepare an estimate for a work activity Estimating techniques for budgeting purposes:
Preparation of approximate quantities for cost budgets, elemental cost estimating from given historical cost data, use of preliminary design drawings, preparation of estimate using BCIS comparative cost data, any other forms of local cost data, adjustments for time, size and quality, inflation and overheads.

Estimating techniques:
Application of all in rates to quantities, total net value, overheads and profit, preliminary items, VAT, pricing in risk, factors affecting risk, inclusion of sub-contracted elements, effect of location, contract period, inclusion of provisional items, use of standard templates and forms, use of ISO 9000 company devised systems.

Application:
Estimation of a work package or activity costs from given data in compiling a final estimate for submission to a client as part of a tendering process.

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