Chapter 1 - Basic Introduction to Estimating and Quantity Surveying

Chapter 1 - Introduction to estimating and Surveying by EngineersIndia

Introduction to Estimating

  • Estimating may be described as a prediction of the likely cost of a construction or a project before the work begins. It takes talent, experience, foresight, and excellent judgment on the side of the estimator, as well as a thorough understanding of the materials and labor costs involved in the project.

  • If labor and material costs stay constant, a reasonable estimate should not deviate by more than 15% from the actual cost of the project after completion. Guesswork entails making a random decision based on all relevant information. It may result in a figure that is either too high or too low.

  • Estimating aids in the alteration or modification of a project to fit inside a budget. It is helpful in preparing tenders for construction projects and inspecting the work done by contractors for interim and final payments. It also serves as a foundation for determining the regular rent for buildings.

  • To begin estimating, you'll need a completely dimensioned design to scale with sectional views, complete specifications for the materials to be utilized, and a schedule of prices for all the components of construction.

The different types of the estimate are

  • Detailed estimate or Item Rate estimate or Intensive estimate.

  • Plinth area estimate.

  • Cubicle content estimate or the cube rate estimate.

  • Revised estimate.

  • Supplementary estimate

Introduction to Quantity Surveying

  • Quantity surveying may be described as the systematically and scientifically figuring out or measuring the quantities of a task using a standard technique of measurement, which when priced offers the expected cost to a tolerable degree of accuracy.


Kumar Bhanushali


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