Identify and produce estimated costs for projects

Identify and produce estimated costs for projectsCERTIFICATE 4 IN BUILDING BCGBC4004ACourse Overview18 week course

First 10 weeks in classroomFollowing 8 in computer room

1.30pm - 5.15pm (with 15 min break)

Assessments throughout

2AssessmentsAssessment tasks/to submit every week

Test end of First term

Major assignment

Final test (cordels)

What you will needBig folder with dividersCalculatorScale rulePencils or PacerErasorHighlightersPunchStaplerUSB memory stickBe Prepared!Arrive on timeBuddy up

Construction Estimates (page 24)Estimating means the process of working out the Expected Nett Cost of constructing a building, and preparing a Tender or price for the finished project.

Calculating expected nett cost of the proposed building or work2. Setting the Tender or selling price of the building or workCalculation of Nett Cost (page 24)Considerations:

The nature and Iocation of the work Building methods and time scales Bill of quantities Labor and productivitySupervisionOffice backup and overheads Materials and suppliers Mechanical plant Statutory requirements-Eg W.H.S -Insurance-Licences and PermitsScaffoldingNon - mechanical plant Sub contractors On - site facilities these items will be collected together and used to establish the overall expected nett cost of the work.different builders will have their own opinions and experience in relation to all the individual items that are involved, and so the nett cost of a project will vary from builder to builder.7Calculation of Nett CostMost often based on the traditional detailed quantity take-off and unit price estimating method.

Quantities of materials are calculated from a full set of plans:

site planfloor plans

Specialist drawings/reports prepared by:

consulting structural engineers consulting electrical engineersconsulting hydraulic engineersconsulting mechanical engineers specialist suppliers (eg. reinforcing steel fabricators, precast panel fabricators) Shop fitters Arborist

sections details

specifications finishes Schedules8Preparing an EstimateBuilder will need to:Study the drawings, specifications and bill of quantities Carry out a site visit Develop a method statementPrepare a preliminary construction program- (duration of the building works for accurate costing time related Preliminaries) Seek quotations for materials supply, sub-contract work and possibly plant hire- (especially relatively long-term items such as scaffolding)Tender/ Selling Price (page 25)Factors Determining the Tender/ Selling price

The project riskCurrent state of the marketCompany policy (profit and mark ups)Importance of winning or losing the particular project

So the Tender price = Expected Nett cost + Profit/Markup

(if successful the contract will be based on this figure)The Bill of Quantities (page 26)Definition-

A bill of quantities is a list of numbered or coded items describing quantities and materials required to carry out the contract work that is divided into sections corresponding with their usual building trade and in accordance with the ASMMBW.

A bill of Quantities-

Is prepared by a trained Quantity Surveyor according to the ASMMBW.provides a common basis for tenderingprevents differences of opinion/interpretation of the drawings and specification.a thorough check of the drawings and specification.

- (all are given a fair and equal chance to win the job)11How Does the process work?Owner/ClientArchitectQuantity SurveyorBuilder/Estimator Subcontractors/SuppliersProfessional ConsultantsBill of quantities format (page 31)A formal BOQ is prepared according to ASMMBW.

Arranged in trade order typically as you would construct Measure only the finished product - (no allowance for waste or laps)All dimensions before calculating to 2 decimal places Do not deduct for openings < 1m2 or voids < 0.1m3 in volumeState dimensions in order of length, width and height or depthUnits of measurement should be m, m2, m3, tonne (steel)All Billing quantities should be billed whole numbers.(except steel which is billed to 2 decimal places)13

Linear Take Off(page 39)

Area Take Off(page 40)

Volume Take Off(Page 41)

Number Take Off(Page 42)

Weight Take Off(Page 43)

Points to be observed in the measurement of quantitiesAll ITEMS listed in alphabetical order and the first item on every page is AAll descriptions shall adequately cover the work being measured as per the ASMMBW, but common methods of construction or stock sections need not be described in detail.The functions of the five columns in the PARTICULARS column shall be strictly observed and carefully set out in accordance with the general practice of a quantity surveyor.All dimensions are in metres and shall be taken to two decimal placesIn the dimension column horizontal Iines are used to signify the differences between linear, area, volume, number and weight measures.The measurement paper shall be spaced well apart to ensure clarity Headings and sub-headings are recommended to clearly identify section and sub- sections of a trade and shall be underlinedThe billing UNIT shall be in accordance with the ASMMBW The billing UNIT shall be placed adjacent to the last line of the description, followed by the extended measured QUANTITY, in their appropriate columns.

LINEAR TAKE OFF

23

AREA TAKE OFF

VOLUME TAKE OFF

EXERCISE 1100x25 hardwood(Page52)EXERCISE 1 (page 52)

EXERCISE 1 (page 52)

EXERCISE 1 (page 52)EXERCISE 1Sheet1SLP 10NIC PRESTONSLP 10TRADETRADE CLASSIFICATION (GROUNDWORKS)REFERENCEPLAN BD101ITEMPARTICULARSUNITQUANTITYRATE$Headings & Sub-headings Always UnderlinedADescription of what you are measuring (BILLING)mwhole(Item descriptions done in pen and are not underlined)m2numbersBLeave a line between items and headingsm3onlyCAll calculations to be done in pencil (MEASURE)DtexceptNote: unit of measurement & quantity must align withlast line of the item description.no.tonne 0.01EtoitemZ etc.NoteDontuseESTIMATORIandEXTENDOfactordimensionextensionlocationside castscolumncolumncolumncolumncolumnTRADE:GROUNDWORKSPAGE:A1TO COLLECTION/SUMMARY $PAGE TOTAL

Sheet2

Sheet3

Sheet1SLP 10NIC PRESTONSLP 10TRADETRADE CLASSIFICATION (GROUNDWORKS)REFERENCEPLAN BD101ITEMPARTICULARSUNITQUANTITYRATE$Headings & Sub-headings Always UnderlinedADescription of what you are measuring (BILLING)mwhole(Item descriptions done in pen and are not underlined)m2numbersBLeave a line between items and headingsm3onlyCAll calculations to be done in pencil (MEASURE)DtexceptNote: unit of measurement & quantity must align withlast line of the item description.no.tonne 0.01EtoitemZ etc.NoteDontuseESTIMATORIandEXTENDOfactordimensionextensionlocationside castscolumncolumncolumncolumncolumnTRADE:GROUNDWORKSPAGE:A1TO COLLECTION/SUMMARY $PAGE TOTAL

Sheet2

Sheet3

Total measured qualifies Billing quantities

154.98m 155m

366.01m 367m

21.45m 22m

35.11m2 36m2

18.98m2 19m2

107.33m2 108m2

89.91m3 90m3

201.22m3 202m3

1024.00kg 1.03t

201.5Okg 0.21t

38.02kg 0.04t

56