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.