Two Methods of Quantity Take-off: Manual vs Digital - RIB (2024)

May 20, 2021
6 mins read
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Two Methods of Quantity Take-off: Manual vs Digital - RIB (1)

Table of Contents

  1. What is a Quantity Take-off (QTO)?
  2. Quantity Take-off Methods
  • 1. Manual Quantity Take-off
  • 2. Digital Quantity Take-off
  • Conclusion
  • Save time and money while improving accuracy with digital take-off and estimating.

    There are two different quantity take-off methods – manual and digital. Different contractors take different approaches. But no matter which approach you take; it is vital to get the quantity take-off as accurate and efficient as possible.

    A quantity take-off is an essential part of the pre-construction phase. Anyerrors made herecan significantly impact the rest of the project that follows. The quantity take-off can affect the cost estimation, overall, budget, timeline, and daily workflow. Doing it right is necessary for a smooth operation.

    So, what are the different methods of quantity take-offs, and how do you achieve the most accuracy? We will explore this below.

    What is a Quantity Take-off (QTO)?

    Also known as a construction take-off, this process is essential for creating the framework around any cost estimation and construction budget for a project.

    Quantity take-offs in construction can be fairly complex, with many different areas involved. In their most simple form, however, a QTO is created to figure out exactly how many materials are needed for a certain project.

    Essentially, estimators will look at blueprints and plans of the project, make a list of all materials required to build the plans and then formulate exactly how much of each material they require. This allows contractors to better understand the scope of the project, build a timeframe, designate duties, and, of course, create an accurate cost estimate for the project.

    No matter the scale of the project, an accurate QTO is critical for project success. Without accurate take-offs, multiple areas of budgeting and planning can fall short.

    Quantity Take-off Methods

    All contractors and subcontractors need to be able toperform a quantity take-offin order to move forward with their job. There are two different quantity take-off methods that they could follow: manual and digital.

    1. Manual Quantity Take-off

    This is the traditional, older way of doing a quantity take-off. Estimators will use the construction plans to make a list of all the physical materials required. Then, by looking at the plans, they will use various formulas and calculations to figure out the exact quantity of each item. This can then be assigned a value to create an accurate cost estimation.

    While a manual QTO may seem like a straightforward task at face value, these operations can be incredibly complex. There are many different equations, as well as many materials and small details to consider. Any errors here can therefore result in either an overestimation or an underestimation. Both can have a significant impact on the project and budget.

    Doing a manual quantity take-off opens the doors to human error. No matter how skilled or experienced the estimator may be, there is always the possibility of inputting a wrong figure or making an incorrect judgment. Even the smallest incorrect details can have big consequences later in the project.

    2. Digital Quantity Take-off

    Of the two quantity take-off methods, a digital take-off may be the preferred option. Built-for-purposeconstruction estimation softwareis available for achieving the most accurate and efficient results possible. Construction software with digital take-off features streamlines the process and enhances accuracy. With automated formulas and equations, you largely decrease the risk of human error.

    Cloud-based systemsstore everything in one place, which allows all team members and stakeholders to access at any time. This keeps data safer, while also improving collaboration.

    Using a digital platform like this also means that you can use and reference your past QTO’s for your current and future projects.

    With a digital take-off, you simply scan the blueprint into the software. The blueprint is then analyzed to create a precise list of all materials required for the project. The estimator can always make manual changes wherever necessary. Then, they can assign automated, error-free formulas to the materials and run them through the software to get accurate construction take-offs.

    Of the two quantity take-off methods, going digital reduces the risk of error, minimizes wastage, and increases efficiency. Ultimately, this leads towinning more tendersand running more streamlined projects.

    Conclusion

    There are two different quantity take-off methods that you can use to create estimates. However, these days, digital processes are quickly taking over, and are much more popular thanks to their added benefits. You can reduce errors and wastage, increase accuracy, and create more efficient take-offs.

    This will save time, money, and keep clients happy. It’s time for contractors to embrace digital solutions and achieve greater success in their projects.

    Two Methods of Quantity Take-off: Manual vs Digital - RIB (2024)

    FAQs

    Two Methods of Quantity Take-off: Manual vs Digital - RIB? ›

    Of the two quantity take-off methods, a digital take-off may be the preferred option. Built-for-purpose construction estimation software is available for achieving the most accurate and efficient results possible. Construction software with digital take-off features streamlines the process and enhances accuracy.

    What are the different types of quantity takeoffs? ›

    Manual vs digital quantity takeoff

    It takes a lot of human error out of the process, although it still needs someone to enter data and check for mistakes. A manual quantity takeoff is more time-consuming, relies heavily on skills and knowledge, and any changes can add sufficiently more time to the process.

    What are the advantages of manual quantity take off? ›

    Accurate quantity takeoffs allow for the creation of detailed and precise budgets, mitigating the risk of cost overruns and unexpected financial burdens. By providing a clear roadmap for expenditures, quantity takeoffs empower project managers to make informed financial decisions.

    What is a digital takeoff? ›

    A digital takeoff is a takeoff completed in a construction cost estimating software platform that offers takeoff capability. Not all construction cost estimating software can help the contractor perform a digital takeoff.

    What is an example of a quantity takeoff? ›

    Many work items measured in a quantity takeoff do not involve materials at all. A good example is “Hand Troweling,” which only has a labor price associated with it. In this case, what needs to be measured is the plan area of concrete that needs to be trowelled.

    What is the difference between quantity takeoff and material takeoff? ›

    Material takeoff is constrained to the quantity of material one needs to purchase to complete a particular project. Quantity takeoffs include material takeoffs as well as anything else the project might need for successful completion.

    What is the standard takeoff procedure? ›

    Standard takeoff minima are one statute mile for aircraft having two engines or less and one-half statute mile for aircraft having more than two engines. Specified ceiling and visibility minima will allow visual avoidance of obstacles during the initial climb at the standard climb gradient.

    What is a detailed takeoff? ›

    At a very high level, a construction takeoff lists the materials needed for the project, along with their respective quantities and costs. In practice, construction takeoffs are incredibly detailed documents that outline the specific types of materials required, along with their measurements and pricing.

    What is the difference between manual take off and digital take off? ›

    Of the two quantity take-off methods, a digital take-off may be the preferred option. Built-for-purpose construction estimation software is available for achieving the most accurate and efficient results possible. Construction software with digital take-off features streamlines the process and enhances accuracy.

    What are the disadvantages of manual processing? ›

    Low Efficiency: Manual processes can be slower and less accurate than automated systems, leading to reduced productivity and efficiency. Increased Labor Costs: Manual processes require more labor, leading to increased labor costs for the business.

    What is the difference between quantity takeoff and detailed estimate? ›

    In summary, a quantity takeoff focuses on determining the physical quantities of construction components, while a full detailed estimate combines the quantity takeoff with cost estimation to provide a comprehensive understanding of the project's costs and pricing.

    What is automated quantity take off? ›

    Automated quantity takeoff: AI and Machine Learning algorithms can be used to automate the process of quantity takeoff. This involves identifying and quantifying different materials needed for a construction project.

    What is on screen takeoff used for? ›

    On-Screen Takeoff software is a tool used in the construction industry to perform digital takeoffs and estimations from electronic plans or drawings. It allows users to view, measure, and annotate digital plans on a computer screen, eliminating the need for manual takeoffs and reducing errors and omissions.

    What are takeoffs in estimating? ›

    In construction, a takeoff is the process that contractors use to figure out the exact quantity of materials needed for a specific project. Also known as a material takeoff or a quantity takeoff, a construction takeoff is an important step in producing an accurate estimate for a project's cost.

    What is a Takeoff bill of quantities? ›

    The term 'taking off' or 'take off' or 'takeoff' refers to the process of identifying and quantifying elements of construction works that can be measured and priced. This can be used to produce bills of quantities that can be issued to tenderers for them to prepare a price for carrying out the works.

    What is the difference between material takeoff and quantity takeoff? ›

    Material takeoff focuses specifically on determining the quantities and types of materials required for a construction project. Quantity takeoff, on the other hand, involves estimating the quantities of all project components, including labor, equipment, and materials, to calculate costs and develop project schedules.

    What is material takeoff quantities? ›

    In construction, a takeoff is the process that contractors use to figure out the exact quantity of materials needed for a specific project. Also known as a material takeoff or a quantity takeoff, a construction takeoff is an important step in producing an accurate estimate for a project's cost.

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