Quantity Surveying

• General Requirements refer to a variety of operations, procedures, and indirect cost that are not directly linked to construction, but are still essential for successfully executing the project.
• A.1.5 Allowance for waste and/or losses, not to exceed 5% of materials requirements.
• A.3.2 Stipulated in the proposal and contract booklet. Mobilization and demobilization shall not exceed 1% of the Estimated Direct Cost (EDC)
• B.1 Overhead Expenses - Ranges from 7 - 11% of the EDC
• B.2 Contingencies - Ranges from 0.5 - 3% of the EDC
• B.3 Miscellaneous Expenses - Ranges from 0.5 - 1% of the EDC.
• B.4 Contractor's Profit Margin - Shall be 8% of the EDC for projects above 5 Million PHP and 10% for projects below 5 Million PHP
• B.5 VAT Component - Shall be 5% of the sum of the EDC, OCM and Profit
• STUCTURAL WORKS PACKAGES

  Site Preparation

  Formworks and Scaffoldings

  Rebar Works

  Concrete Works

  Masonry Works

  Waterproofing Works
• COMMON ARCHITECTURAL WORK PACKAGES

  Ceiling Works

  Wall and Baseboard Works

  Metal and Glass Works

  Painting Works
• Quantity Surveying - This is the quantification/estimation of works for a construction project and costing them.

  Estimating is not an exact science. It is a combination of skills and experiences
• Estimating - Estimating material cost can be accomplished with a relatively high degree of accuracy

  Accurate estimating of labor and equipment cost is considerably more difficult to accomplish
• Project Management Life Cycle

  Initiation

  Planning

  Execution

  Monitoring and Controlling

  Closure
• Parametric Estimating - Estimates use of simple calculations to estimate costs. It often takes standard rates and multiplies them by dimensions.
• Detailed Estimating - A detailed estimate is prepared during the later stages of project planning when more specific information is available.
• Conceptual Estimating - Based on inferred or statistical relationships between costs, and other typically design-related parameters.
• Deterministic Estimating - straightforward counts or measures of items multiplied by known unit costs. It require a high degree of precision in the determination of quantities, pricing and completeness of scope definition.
• Estimating Take-Off - It is the process of quantifying the material and labor quantities associated with the project.
• Costing - is the process of applying unit costs to the individual quantities of items associated with the estimate.

  Such as

  Labor Hours

  Wage Rates

  Material Cost

  Subcontractor Cost
• Pricing - is adjusting the costs that have been applied for a specific project conditions, and commercial terms.

  Overhead and Profit

  Improve Cash Flow

  Business Interests
• Allowances - are often included in an estimate to account for the predictable but undefinable costs associated with the project scope.
• Contingency - is an amount used in the estimate to deal with the uncertainties inherent in the estimating process.
• Structuring the estimate - The control structure for a project is the breakdown of the total work into manageable units or packages for the purposes of estimating and control of cost and schedule

  Material vs Labor vs Equipment

  Direct Costs vs Indirect Costs

  Concrete vs Structural Steel vs Piping
• WBS - is the hierarchical decomposition of the total scope of work to be carries out by the team to accomplish the project objectives.
• Decomposition - is a technique used for dividing and subdividing the project scope and project deliverables into smaller and more manageable parts.