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What Is Estimation of Residential Building | Types of Estimation for Residential Building

Estimation of Residential Building

Important Point

  • What Is Estimation of Residential Building?
  • Different Types of Estimation for Residential Building
  • Advantages of Estimation for Residential Building
  • Disadvantages of Estimation for Residential Building
  • Application of Estimation for Residential Building
    • Estimation of Residential Building
    • Residential Construction Cost Estimator Excel
    • Residential Construction Estimator
    • Residential Building Cost Estimator
    • Residential Construction Cost Estimator Excel India

What Is Estimation of Residential Building?

Estimation of a residential building is basically a “Bottoms Up” or “Prime Cost” which performed an analysis in detail and finally produce a product.

Estimation actually calculates all the necessary values with a lower rate and higher amount, this method helps the owner. It is basically a combination of estimating methods. Estimation of residential building executes various types of works and their expenses in a chart.

Different Types of Estimation for Residential Building

Here is a description of different types of estimation for residential building.

1. Earthwork Excavation Process:

It is almost first step of estimation. Here, we calculate the amount of earthwork should be excavated. It is measured in a meter cube. Sand filling for basement or foundation. This is the second step of estimation of a residential building; here, we measure how much amount of sand is needed for the filling purpose and it is measured in a meter cube unit.

2.  P.C.C. With a Mix of 1:5:10 for Foundation:

After that plain cement concrete is needed with a mixture of 1:5:10 for the foundation purpose and the unit of this is also meter cube. P.C.C. with a mix of 1:2:4 for beam, roof, sunshade: In residential building estimation there is another type of plain cement concrete needed for beam, column, roof purpose and that is a ratio of 1:2:4 mix & measured by meter cube unit.

3. Dummy Concrete With a Mix of 1:3:6:

This is not always used in the residential building purpose but we need to calculate this in our measurement. Steel casing and rods for centring and scaffolding: Steel is measured by kilogram unit.

4. Steel Rods for Reinforced Concrete:

There are different types of steel rods are required for reinforced concrete like 55 grade, 45 grade and different diameter like 8, 10, 16, etc. This is also measured in kg.

5. Brickwork Process:

Bricks should be laid with frogs upward except in the top course where frogs should be placed downwards. Brickwork should be carried out for not more than 1 metre or 3 feet in height at a time. When one part of the wall has to be delayed, stepping should be left at an angle of 45 degrees. Brickwork is measured in sq. cm.

6. Plastering Process:

Plaster is a pasty composition (as of lime or gypsum, water, and sand) that hardens on drying and is used for coating walls, ceilings, and partitions. Plastering is one of the most ancient building techniques. This helps to protect the internal materials of the house. The unit is sq. cm.

7. Flooring Process (marble, tile, etc):

Flooring is the general term for a permanent covering of a floor, or for the work of installing such a floor covering. Floor covering is a term to generically describe any finish material applied over a floor structure to provide a walking surface. It is measured in the sq.m.

8. Weathering Course Process:

A course laid on top surface of RCC roof slap to protect it against weather elements like rain, heat etc is known as weathering course. Purpose: Weathering course is provided to protect the flat roofs against weather elements. It also make the roof leak proof. It is a protective course and unit is litre.

9. Door and Windows Process:

Window and door schedules are a convenient way of presenting complex information about the different door and window sizes and types that are specified on the contract documents to ensure proper installation. This is completely wooden work and measured in sq.m.

10. Electrical Work Process:

In the final phase of an electrical installation, lighting fixtures and devices such as switches and receptacles are installed, appliance connections are made, and utilities (boilers or furnaces, air conditioning, well pumps, etc.) are connected. Learn more. It has some specific measuring unit.

11. Plumbing Work Process:

Plumbing is a system of pipes and fixtures installed in a building for the distribution and use of potable (drinkable) water and the removal of waterborne wastes. It is usually distinguished from water and sewage systems that serve a group of buildings or a city.

12. Septic Tank Work Process:

Septic tanks work by allowing waste to separate into three layers: solids, effluent and scum (see illustration above). The solids settle to the bottom, where microorganisms decompose them. The scum, composed of waste that’s lighter than water, floats on top.

Also, Read: What Is the Penetration Test | What Is the SPT Test | Procedure | Efficiency | Advantages and Disadvantages

Advantages of Estimation for Residential Building

There are many advantages of estimation, those are-

  1. Money-saving: It gives you a smooth projection of the project. That helps you to save the money from the project and all details of working capital.
  2. Speed increaser: Another advantage of estimation is it helps to increase the speed of the project.
  3. Confidence booster: It helps to increase your bid because it helps to increase your confidence.
  4. Another advantage of this is it creates a strong relationship between you and client.
  5. Estimation is a very simple process which also helps to understand between two parties and it is also very transparent.
  6. Estimation is a very flexible method; where, you can add or remove data anytime.

Disadvantages of Estimation for Residential Building

There are many disadvantages are there, some of those are-

  1. The main disadvantage of estimation is it creates large deviation from the accurate value.
  2. Estimation is not based on the material specification and drawing, this the another disadvantage.
  3. Finally, it is not a reliable method to use it anywhere.

Also, Read: What Is Bulking of Sand | Bulking of Sand Is Caused Due to | Bulking of Sand Graph | Bulking of Sand Formula | Test Procedure to Determine the Bulking of Sand

Application of Estimation for Residential Building

There are different types of estimating software are available in the market. Those individuals have specific features. Some of them are-

  1. E takeoff Dimension: This software basically estimates the quantity and the cost of the materials. It can compare two or more different types of drawings. It can print drawing and that can be used by multiuser.
  2. Mothing: It also a estimation software which is based on Java. It creates a Gnatt chart. It can produce the tenders via online.
  3. Stack: It is the most popular software for estimation. It can estimate equipments, labours, required materials, etc. It can summarize all contractor bids and track the project status.
FAQ

Estimation of Residential Building

Before You Directly Start Calculating Quantity, You Must Precisely and Correctly Read the Construction Drawing.

  1. Check dimension of each block is provided or not.
  2. The check schedule of the opening is there.
  3. Check specification of work.
  4. Check the thickness of the wall is same or changes.

Residential Construction Cost Estimator Excel

  • Calculate area of your plot ( lenght x width)
  • Convert area in sq. Ft.
  • Enter the area of your plot in red-colored excel cell below the enter your house area in sq.
  • Enter your area construction cost per sq.
  • Check your construction cost at the bottom of the table.

Residential Construction Estimator

An estimate is a document that a seller constructs to outline the expected price of the goods and services requested by a buyer. In residential construction, builders create an estimate for a construction project by detailing all the materials, labor, equipment, and subcontract work involved.

Residential Building Cost Estimator

  • Total Cost. = Builtup Area × Approx Cost Per Sq. Ft. = 1000 × 1000. = 1000000.00 Rs.
  • Amount of Aggregate Required. = Builtup Area × 0.608. = 1000 × 0.608. = 608.00 Ton.
  • Flooring. = Builtup Area × 1.3. = 1000 × 1.3. = 1300.00 Sq.

Residential Construction Cost Estimator Excel India

  • For Normal Quality Construction =1000 Rs./sq. Ft.
  • For Medium Quality Construction = 1200 Rs./sq. Ft.
  • For High Quality Construction = 1500 Rs./sq. Ft.

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