This is How to Accurately Calculate Building Area

The method for calculating building area can be done in various ways. For greater accuracy, it is recommended to use AutoCAD software. However, you can also measure manually using a measuring wheel and simple mathematical formulas. Area measurement serves many purposes, one of which is to ensure renovation costs for a house.

This article discusses how to calculate building area. It is important for you to note that measuring a single-story building is different from measuring a two-story building and so on. There are specific criteria you should consider before making these calculations. For more details, please read this article.

How to Calculate the Area of a House

The method for calculating the area of a house can be done in several ways. Depending on your needs, you can choose one of these methods. For more accurate and verified measurements, it's recommended to try measuring the building area using more than one method. Here are the steps.

1. Using AutoCAD

The first method for calculating building area is by using AutoCAD software. This software is commonly used in architecture and civil engineering. AutoCAD allows you to draw house floor plans with precise accuracy. Once the design is created, you can easily measure it.

2. Using a Measuring Wheel

The second method for calculating the area of a house is by using a measuring wheel. This tool allows you to manually measure the area of the building. You can do this by walking around the area you want to measure. Record the length and width of the building and calculate it using mathematical formulas.

3. Using Mathematical Formulas

Simple mathematical formulas are useful for measuring the area of a building. Before calculating, determine the shape of the area, the required length and width, and in which unit you need the area measurement. In general, building area is calculated in square meters (m²). Here are some formulas to remember:

Area of a square = Length × Width
Area of a triangle = (Side A + Side B + Side C) ÷ 2
Area of a trapezoid = ½ × (Parallel Side A + Parallel Side B) × Height

Calculating the Area of Multi-Level Buildings

Calculating the area of multi-level buildings is different from measuring a regular building. The method for calculating the area of a two-story building must consider whether the second floor is truly categorized as a floor. Not all spaces above the first floor can be considered additional floors. For more clarity, read further.

1. Enclosed Spaces with a Ceiling Over 1.2 m²

If the space above the first floor is enclosed with a ceiling height greater than 1.2 m², then that space is considered a second floor. The method for calculating the area of a two-story building involves adding the area of the first floor and the area of the second floor. You can still use the methods mentioned above.

2. Overstek

Overstek is a part of a building that extends outward from the wall. This area can include elements, such as a canopy or balcony. Overstek is typically calculated as 50% of its original area. For example, if the area of the overstek is 8 m², only 4 m² is included in the calculation. This is because the overstek area cannot be categorized as a usable space.

3. Uncovered Spaces

The examples of uncovered spaces include gardens, swimming pools, yards, or other open areas. These areas should not be included in the building area description. These spaces should be calculated separately from the main building area.

Uses of Measuring Building Area

Understanding how to calculate the area of a house has many benefits. You won’t feel confused when undertaking a home renovation project with this information. It also gives you more confidence in understanding the amount of Property and Building Tax (PBB) you pay. Read on to find out more benefits.

1. To Determine Construction Cost

The building area is essential for calculating material requirements and estimating construction costs. With precise area measurements, you can create a more accurate cost estimate. This accuracy also contributes to cost efficiency in the long run.

Moreover, knowing the accurate building area simplifies the negotiation process with construction service providers. For example, you can ensure that the contractor’s or subcontractor’s proposed costs are reasonable and align with the work to be done. This helps prevent unnecessary additional expenses.

2. To Prepare Wages for Pieceworkers

Knowing how to calculate the area of a building is essential for determining the wages of construction workers. Typically, building area calculations impact labor costs. With accurate building measurements, you can estimate the budget for the wages needed.

3. To Estimate Casting Costs

If the project you are undertaking is casting, measuring the building area is essential. This is because the casting process requires careful planning, especially when constructing a concrete roof or floor. The building area size will determine the volume of concrete mixture that needs to be prepared.

4. For Tax Purposes

Calculating property tax requires information on the building area in square meters (m²). Having accurate data will help you avoid mistakes in reporting and paying property taxes, whether for your home or other building assets you currently own.

So, that’s how to accurately calculate the area of a house. Measuring the building area requires serious attention. For precise calculations, you can measure using both AutoCAD and manually at the same time. This way, you can be more confident in the results obtained.

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