Main Roles of QS:
Quantity Take-Off & Estimation
Prepare quantity calculations from drawings
Calculate material quantities (cement, steel, tiles, partitions, etc.)
Prepare cost estimates
BOQ Preparation
Prepare Bill of Quantities (BOQ)
Define item descriptions, quantities, units, and rates
Check BOQ against drawings and specifications
Cost Control
Track project budget
Compare estimated cost vs actual cost
Control unnecessary expenses
Tendering & Quotation Work
Prepare tender documents
Float enquiries to vendors/subcontractors
Compare quotations and prepare comparison statements
Billing & Measurement
Check contractor/subcontractor bills
Verify site measurements
Prepare running bills (RA Bills)
Process payment certification
Variation / Extra Work Management
Identify additional works
Prepare variation statements
Calculate extra cost and approvals
Rate Analysis
Prepare rates for new items
Analyse material + labour + equipment costs
Procurement Support
Prepare material requirement
Compare supplier prices
Support purchase decisions
Contract Management
Maintain contract documents
Handle claims, delays, and commercial issues
Final Account Settlement
Prepare final project cost
Close subcontractor accounts
Complete final billing