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INTRODUCTION TO
DRAWING
PROJECT ONE (A)QUANTITY SURVEYING DRAWINGS
MS. ANNAPHILIA CHUAONG EU XUANTAN JIA YIADRIAN WIJAYADANIEL TIEW
INTRODUCTION TO PROJECT ONE (A)
• To study and investigate the use of the drawings as a means of communication
• To research on the types and function of drawings, stages and examples of drawings of a quantity surveyor used to communicate ideas and presentations.
WHAT IS A QUANTITY SURVEYOR?
A Quantity Surveyor is an expert in the art of costing a building at all its stages.
ROLES OF A QUANTITY SURVEYOR
• Estimate materials, time and labour costs.• Preparing, negotiating and analysing costs for tenders and contracts.
QUANTITY SURVEYING WORK PROCESS
1. FEASIBILITYAND
ESTIMATING
2. DESIGN
3. CONTRACT MANAGEMENT
4. CONSTRUCTION
QUANTITY SURVEYING DRAWINGS
BILLS OF QUANTITIES
• Describes the quality and quantity of work to be carried out during the construction stage.
PURPOSE OF BQ
• Provides a basis for valuation of variations to the work
• Provides good basis for cost analysis• Can be used by contractors
FORMATS OF BQ
• Elemental Bills• Trade Bills• Annotated Bills• Operational Bills• Activity Bills
ELEMENTAL BILLS
TRADE BILLS
EXAMPLES OF BILLS OF QUANTITIES
STAGES OF BQ PREPARATION
TAKING OFFTAKING OFF
SQUARINGSQUARING
ABSTRACTINGABSTRACTING
BILLINGBILLING
BILLING DIRECT
BILLING DIRECT
DEVELOPMENT OF THE STAGES
DRAWINGDRAWING DIMENSIONPAPER
DIMENSIONPAPER
BILLINGPAPER
BILLINGPAPER
BILL OF QUANTITIES
(BQ)
BILL OF QUANTITIES
(BQ)
TAKING OFF
SQUARING
DIRECT BILLING
CONTENTS OF BILL OF QUANTITIES
BILL NR. 1BILL NR. 1 PRELIMINARIESPRELIMINARIES
BILL NR. 2BILL NR. 2 PREAMBLESPREAMBLES
BILL NR. 3BILL NR. 3 MEASURED WORKSMEASURED WORKS
BILL NR. 4BILL NR. 4 PROVISIONAL QUANTITIESPROVISIONAL QUANTITIES
BILL NR. 5BILL NR. 5 PRIME COST & PROVISIONAL SUMPRIME COST & PROVISIONAL SUM
BILL NR. 6BILL NR. 6 CONTINGENCY SUMCONTINGENCY SUM
BILL NR. 7BILL NR. 7 GENERAL SUMMARYGENERAL SUMMARY
Mono-pitched roofPitched roof details
BILL NR. 3BILL NR. 3 MEASURED WORKSMEASURED WORKS
(a). Carcass – I.Foundations II.Frame III.External & Internal WallsIV.Partitions V.FloorsVI.Roofs
Example of an internal finishes schedule
(b). Finishing(c). External works (d). Spot items
Example of a door drawing
CONCLUSION
• A quantity surveyor plays an important role in the construction industry.
REFERENCES• Quantity Surveyor's Pocket Book (Second
Edition) by Duncan Cartlidge, published by Routledge Taylor & Francis Group, 2013
• Construction Quantity Surveying: A Practical Guide for the Contractor’s QS by Donald Towey, published by Wiley-Blackwell, 2012
• http://www.idealplanningdesign.co.uk/services/quantity-surveying
• http://www.nziqs.co.nz/about/whatis.html