Quantity determination according to VOB: Precision will be your key to construction success
When we talk about construction, quantity determination according to VOB we mean much more than just simply counting materials – it’s a truly fundamental process. It is the be-all and end-all for accurate cost calculation, effective resource planning, and ultimately for the economic success of your construction projects. It’s hard to believe, but errors in this early phase can trigger a real chain reaction, leading to nasty surprises such as budget overruns and delays. That’s why it’s so important to truly understand and correctly apply the VOB regulations. Here at Valoon GmbH, we know the pitfalls of this task all too well. That’s why we have developed innovative software solutions that help you noticeably simplify and optimize this process. In this article, we want to show you how a VOB-compliant quantity determination not only keeps you on the legally safe side but also enables you to reliably achieve your project goals and avoid cumbersome disputes. Discover with us how you can execute your construction projects more smoothly and elevate your efficiency to a new level.
- Quantity determination according to VOB is a fundamental process for accurate cost calculation and resource planning.
- Mistakes in the early phase can lead to budget overruns and delays.
- A deep understanding of the VOB regulations and their correct application are crucial for project success.
- The aim of this article is to demonstrate legally compliant, VOB-conform quantity determination for reliable project goals and fewer disputes.
The importance of quantity determination in the construction process
An exact quantity determination according to VOB quantity determination is, and this cannot be emphasized enough, crucial for the entire lifecycle of a construction project. It all starts in the planning phase with the creation of the target quantities for the bill of quantities and continues like a thread through work preparation all the way to the final billing of services actually rendered. Precise quantities are simply the foundation for realistic cost estimates, awarding contracts, and procuring materials. Without a robust quantity determination, companies risk making poor investments, facing material shortages or surpluses, or ending up in costly renegotiations. Adhering to the VOB, particularly Parts B and C, ensures that all parties involved in the project operate on a common, legally binding basis. This significantly minimizes misunderstandings and creates transparency – and that is essential for successful collaboration. Therefore, the quantity determination is a real critical success factor.
Objective of the article: Comprehensive analysis and practical application
With this article, we aim to provide you with a comprehensive understanding of quantity determination according to VOB and at the same time give you practical approaches for its application. We will take a look at the legal framework, go into detail regarding the relevant ATV DIN norms, and clarify what the rules on excess measurement and deductions involve. Additionally, we will introduce modern digital methods that can help you make this essential step more efficient and accurate. Concrete examples and useful tips for avoiding errors should make it easier for you to transfer from theory to practice. Our goal is to equip you with the necessary knowledge to help you manage the dreaded ‘numbers chaos’ on the construction site and lead your projects successfully to completion. With the right tools and the necessary know-how, such as that offered by our measurement app quantity determination becomes a process that you can control and make transparent.The foundation must be solid: VOB basics for your precise quantity determination
For the quantity determination according to VOB to be really accurate, a solid foundational understanding is simply essential. At its core, it involves systematically capturing and calculating all quantities for a construction project according to the guidelines of the bill of quantities. This serves not only the purpose of cost determination but is also crucial for resource allocation and planning construction times. One can say: A careful quantity determination is the basis for every well-founded decision throughout the entire construction process. This not only creates a clear basis for discussion between clients and contractors but also helps to clarify misunderstandings right from the start. Accuracy in this phase has a direct impact on the profitability of the entire project and, not to forget, on the satisfaction of all involved. And when it comes to efficiently creating the bill of quantities, good bill of quantities software can truly be worth its weight in gold.
Definition and purpose of quantity determination
Quantity determination, often also known as mass determination, is basically the process of calculating all the necessary construction materials, labor hours, and equipment for a construction project – neatly categorized by the various trades. Its main purpose? Clearly, it is to prepare cost calculations and bids. It forms the basis for the commissioning of the executing companies. According to the VOB, it is the responsibility of quantity determination to calculate object amounts using formulas. The quantity determination according to VOB ensures that these calculations follow standardized and traceable rules. The goal is to compile target or actual quantities according to the structure of the bill of quantities and determine them with structured calculation approaches. This enables a transparent and fair billing of construction services – and who wouldn’t want that?
Legal framework: VOB Part B § 14 and VOB Part C (ATV DIN 18299 ff.)
The legal rules for the quantity determination according to VOB are primarily found in the German Construction Contract Procedures (VOB). Of particular importance here is § 14 of VOB Part B, which regulates the billing of construction services, and the General Technical Terms of Contract for Construction Services (ATV) in VOB Part C. The ATV DIN 18299 contains general provisions for construction work of all kinds. The specific ATV DIN norms (think of DIN 18330 for masonry work or DIN 18350 for plaster and stucco work) lay down detailed regulations for billing individual trades. These norms define, among other things, how measurements are to be determined and what excess measurement and deduction rules apply. Adherence to these regulations is absolutely essential for correct and contestable quantity determination and thus a crucial building block for the digital order processing in construction..
The role of the bill of quantities (LV) as the basis
The bill of quantities, or LV for short, is the heart of quantity determination according to VOB. It describes in detail all construction services to be performed and serves as the basis for both the bidding calculations of the construction companies and for the subsequent billing. The quantities listed in the LV (target quantities) are usually determined in Performance Phase 5 of the HOAI (implementation planning). It is truly of crucial importance that the LV is precise and complete to keep later amendments due to ambiguities or omissions to a minimum. Quantity determination ensures that the items listed in the LV are accurately quantified and valued. A carefully prepared quantity determination template can be a great help in ensuring the necessary structure and detail.
- Creation of target quantities in Performance Phase 5 HOAI: In this phase, that is, before the awarding of the contract, the target quantities are calculated. The architect or planner is responsible for this, often resorting to REB-based (Regulations for Electronic Construction Billing) solutions.
- Basis for bid calculation and contract award: The LV with the determined quantities is the basis on which construction companies calculate their offers. Precise quantity determination according to VOB quantity determination is paramount for fair competitive conditions.
- Billing basis: After the construction is completed, the actual quantities are determined based on a measurement and compared with the target quantities of the LV. The VOB/C provides the binding billing regulations for this – so to speak, the rulebook.
VOB/C & ATV DIN norms in plain language: Master excess and deduction rules with confidence
Anyone who really wants to do everything right comes across the need for a deep understanding of VOB Part C and the associated General Technical Terms of Contract (ATV DIN norms). This is simply fundamental. These regulations provide the detailed framework for billing construction services and are invaluable to avoid errors and subsequent disputes. In particular, the sections addressing measurement and quantity determination as well as the specific excess measurement and deduction rules require our full attention. The issue often becomes tricky because each trade has its own requirements and therefore its own ATV DIN norms. A thorough knowledge of these norms is the key to conducting precise and traceable quantity determination – and that leads to transparent project execution that everyone desires. A practical quantity determination according to VOB wirklich alles richtig machen will, kommt um ein tiefgehendes Verständnis der VOB Teil C und der dazugehörigen Allgemeinen Technischen Vertragsbedingungen (ATV DIN-Normen) nicht herum. Das ist einfach die Basis. Diese Regelwerke geben den detaillierten Rahmen für die Abrechnung von Bauleistungen vor und sind Gold wert, um Fehler und spätere Streitereien zu vermeiden. Insbesondere die Abschnitte zur Ermittlung der Maße und Mengen sowie die spezifischen Übermessungs- und Abzugsregeln verlangen unsere volle Aufmerksamkeit. Die Sache wird oft dadurch knifflig, dass jedes Gewerk seine eigenen Anforderungen und damit auch eigene ATV DIN-Normen mitbringt. Eine genaue Kenntnis dieser Normen ist der Schlüssel, um die Mengenermittlung präzise und nachvollziehbar durchzuführen – und das sorgt für eine transparente Projektabwicklung, die sich jeder wünscht. Ein praktisches measurement sample according to VOB can help to develop a better understanding of the requirements.
- A deep understanding of VOB Part C and the General Technical Terms of Contract (ATV DIN norms) is the foundation for correct quantity determination according to VOB.
- These regulations provide the detailed framework for billing construction services and help to avoid errors and subsequent disputes.
- Particular attention is required for the sections addressing the determination of measurements and quantities as well as the specific excess measurement and deduction rules.
- Each trade has its own ATV DIN norms, whose precise knowledge is essential for accurate and traceable quantity determination according to VOB.
General regulations in DIN 18299: Foundations for all trades
The ATV DIN 18299 “General regulations for construction work of all kinds” serves as the foundation and general framework within VOB/C. It includes basic definitions and regulations that apply to all trades – unless specific deviations are made in the ATV for individual trades. Important aspects of DIN 18299 include provisions regarding ancillary services and special services as well as the general principles for determining measurements and quantities. This norm ensures that we speak a uniform language across various service areas during the quantity determination according to VOB quantity determination process. It stipulates, for example, that not only drawings but also models can serve as the basis for determining services and that if these are missing, the services must be measured. Knowledge of these general rules is fundamental before delving into the specific details of the trades.
Specific ATV DIN norms (18300 – 18459): Differences and applications
In addition to the general DIN 18299, there are numerous specific ATV DIN norms that are tailored precisely to the individual trades – ranging from earthworks (DIN 18300) to masonry (DIN 18330) to drywall construction (DIN 18340) and demolition and deconstruction (DIN 18459). Each of these norms contains detailed billing regulations, which address the particularities of the respective trade. For instance, the rules for excess measurement of openings or deducing recesses can vary depending on the trade. For correct quantity determination, it is therefore essential to have the relevant ATV DIN norm on hand and to follow its specific requirements closely. This also involves determining the correct billing units (such as m², m³, pieces, kg), which are clearly defined in the respective ATV. A good construction software can be a real asset in managing this variety of norms.
Overview of important norms for various trades (e.g., earthworks, masonry, drywall)
To illustrate this variety: In earthworks according to DIN 18300, quantities can be billed according to volume (m³), area (m²), mass (t), or count (pieces) depending on the type of service. For masonry work according to DIN 18330, for example, the preparation of measurements (up to 2.5 m² will be measured) is an important point. In drywall construction (DIN 18340), the principle of the smallest circumscribing rectangle often applies to simplify calculations for polygonal areas. These trade-specific differences must be accurately considered in order to arrive at a faultless billing. The correct application of these norms, such as the quantity determination according to VOB measurement and billing according to VOB/C DIN 18363 Aufmaß und Abrechnung nach VOB/C DIN 18363 for painting and coating work, is absolutely critical.
Excess measurement rules: Detailed analysis and practical examples
The excess measurement rules of the VOB/C are a central point in quantity determination according to VOB and often serve to simplify the measurement process. They stipulate which components or areas should not be deducted but rather measured (i.e., over-measured) when determining quantities. Typical examples include small openings and recesses. For instance, according to VOB/C, when billing by area, recesses up to a certain size (e.g., 2.50 m² in masonry according to DIN 18330) are simply over-measured. Also, joints and interruptions up to a single length of 1.00 m in length measurements are often over-measured. A misinterpretation of these rules can lead to significant discrepancies in billing – and nobody wants that. It is, therefore, extremely important to know the exact thresholds and conditions of the respective ATV DIN norm. The excess measurement rules VOB 2019 should be kept in mind during this process.
- Joints and interruptions: For length measurements, interruptions ≤ 1.00 m are over-measured. For area measurements, interruptions due to structural elements like cable ducts up to 30 cm wide are also over-measured.
- Recesses and their treatment: For area measurements, it applies that recesses ≤ 2.50 m² (e.g., in masonry) or ≤ 0.50 m² (in floors) are over-measured. The exact definition of a recess (as a cross-section weakening) should be observed according to the appendix to the ATV DIN 18299 – a small but fine distinction!
- Consequences of misinterpretations: When excess measurement rules are incorrectly applied, it leads to incorrect quantity determination. This can mean financial disadvantages for one of the contracting parties and can often lead to disputes.
Deduction rules: When and how are areas deducted?
As the counterpart to the excess measurement rules, there are the deduction rules. These define when and how certain areas or volumes must be deducted from the total quantity. This generally pertains to larger openings or recesses, which exceed the thresholds defined in the excess measurement rules. For example, openings over 2.5 m² must be deducted in the area measurement of masonry. The exact rules here also vary significantly depending on the trade and type of billing (i.e., volume, area, or length). A precise knowledge of the thresholds is paramount to ensure that the quantity determination according to VOB is carried out correctly and no unjustified excess or deficit quantities are billed. The distinction between niches and openings can also play a role here, as specified by the specific ATV DIN norms.Digital on course: More efficiency in VOB quantity determination with REB, BIM & Co.
Even before the quantity determination according to VOB digitalization does not stop – on the contrary, it has truly revolutionized in this area and today opens up fantastic opportunities for becoming more efficient and reducing errors. Modern software solutions and standardized procedures such as Electronic Construction Billing (REB) allow for faster, more accurate, and transparent capture and processing of quantities. The use of Building Information Modeling (BIM) also introduces entirely new dimensions for model-based quantity determination. These digital tools not only assist with the actual calculations but also support data exchange and collaboration among all those involved in the project. This is also our approach here at Valoon GmbH: We want to make data collection and processing as straightforward as possible so that not only this important process but the entire project management runs smoothly. A powerful construction software for calculation is a crucial component in fully harnessing potential.
REB-VB: Standard for digital quantity determination
The ‘Regulations for Electronic Construction Billing’ (REB), and specifically the REB procedural descriptions (REB-VB), define standards for digital quantity determination and the associated data exchange. REB-VB enables the digital determination of quantities such as areas, volumes, and spaces, based on geometric calculation formulas. It is crucial to use standardized data exchange formats (think of GAEB-DA11 for quantity listings) so that different software applications can truly ‘speak’ with each other. It is important to note: If you want to use REB procedures for determining actual quantities, you should clearly agree on this with your contracting partners . This also applies to the use of self-registering measuring devices or GPS measurements. An early clarification of the computational approaches and devices used is essential for a smooth digital. Das betrifft auch den Einsatz von selbstregistrierenden Messgeräten oder GPS-Messungen. Eine frühzeitige Festlegung der rechentechnischen Ansätze und der eingesetzten Geräte ist entscheidend für eine reibungslose digitale quantity determination according to VOB.
- Data exchange formats and their significance: GAEB standards (by the Joint Committee for Electronics in Construction), such as DA11, are essential for the smooth exchange of quantity data between different software programs used by planners, construction companies, and clients. Without them, things can get complicated quickly!
- The necessity of a contractual agreement: The application of REB procedures, especially regarding the billing of actual quantities, should be explicitly documented in the construction contract. This helps avoid later inconsistencies. This also applies to the software versions and measurement methods to be used.
- Advantages of REB procedures: Standardized calculations make quantity determination more traceable and verifiable, reduce sources of manual errors, and speed up the entire billing process – a real benefit for all parties involved.
BIM (Building Information Modeling) and AVA software
Building Information Modeling (BIM) introduces a model-based approach into the quantity determination according to VOB. Imagine: Quantities can be derived directly and almost automatically from a digital 3D building model. This method significantly increases accuracy and saves a lot of time compared to traditional 2D methods. AVA software (for bidding, awarding, and billing) can often be directly linked with BIM models to seamlessly integrate determined quantities into bills of quantities and calculations. GAEB interfaces also ensure standardized data exchange here. The benefits of BIM in quantity determination are clear: consistent data maintenance, easy visualization, and the ability to transfer changes in the model directly to quantity calculations. All of this leads to significantly more efficient and error-free quantity determination.
Practical application of software solutions (e.g., Bluebeam Revu)
Modern software solutions like Bluebeam Revu or our own Valoon platform make quantity determination according to VOB many times easier, even when a complete BIM model is not available. Such tools allow quantities to be pulled directly from 2D plans in PDF or JPG format. Digital measuring tools allow for precise capture of lengths, areas, and volumes – a tape measure just can’t keep up. Some solutions even provide the ability to create simple 3D models based on 2D plans and automatically generate quantities according to DIN 276 or bill of quantities positions. This not only reduces measurement errors but also significantly decreases manual effort. The integration of such tools into daily workflows, for example through a smart measurement app or a specialized craftsman measurement software, can sustainably improve efficiency in quantity determination quantity determination according to VOB and overall project documentation. And yes, there are also suitable solutions for specialized requirements like those for drone measurement software .Goodbye errors! This is how you ensure precision and compliance in VOB quantity determination
Let’s be honest: Despite all the regulations and digital helpers, the quantity determination according to VOB is a process where mistakes can happen. Inaccuracies can quickly lead to significant financial consequences and unpleasant legal disputes. Therefore, it is incredibly important to know the typical sources of error and proactively develop strategies for error avoidance. A careful working method, combined with the clever use of technology and the willingness for continuous education, is the key to correct and reliable quantity determination. We at Valoon GmbH want to support you in overcoming these hurdles. Our tools are designed for simplicity and intuitive operation to minimize error sources right from the start. A solid understanding of the regulations is, of course, fundamental.
- Inaccuracies in the quantity determination according to VOB can lead to significant financial consequences and legal disputes.
- It is crucial to know typical sources of error and proactively develop strategies for error avoidance.
- A careful working method, clever use of technology, and continuous education are the keys to correct and reliable quantity determination according to VOB.
- Minimizing errors requires a solid understanding of the fundamental requirements, such as those for a
Typical sources of error in quantity determination
What are the most common mistakes in the quantity determination according to VOBquantity determination? They often arise from human error or a not fully complete understanding of the rather complex regulations. A misinterpretation of construction drawings or plans can lead to significant deviations in the determined quantities. Equally critical is the incorrect application of the VOB/C rules, especially concerning the excess measurement and deduction provisions. Often, perhaps, there is also a lack of the necessary care in data collection directly on-site or in transferring the data into the billing systems. And don’t forget: An inadequate documentation of services rendered can subsequently lead to real problems in the traceability and verifiability of quantity determination. Just a clear mass determination construction template can help ensure a more structured and therefore safer approach.
- Incorrect interpretation of plans and drawings: A misunderstanding of symbols, scales, or sections can quickly lead to incorrect measurements. This happens more easily than one might think!
- Incorrect application of the VOB/C rules: Ignorance or incorrect interpretation of excess measurement, deduction, or billing units specific to ATV DIN norms. For example, correctly billing dry construction work according to VOB requires specific knowledge that must be readily available.
- Insufficient care in data collection: Careless errors in measuring, recording, or transferring data – human, but avoidable.
- Insufficient documentation: Missing evidence, sketches, or photos that make the quantity determination traceable. In case of doubt, one is then left without proof.
Strategies for error prevention
To minimize errors in this process as much as possible, a multi-level approach is necessary. The implementation of quality assurance processes, such as the well-established four-eyes principle when checking measurements and billing, is truly an important step. Regular training for employees on current VOB regulations and specific ATV DIN standards is essential to keep the necessary expertise fresh and present. The use of software solutions with integrated checking routines can also provide great assistance in detecting inconsistencies and obvious errors early on. A standardized approach, for example through the use of checklists or templates for quantity determination, also contributes to reducing the error rate. The use of a practical Measurement Construction App can significantly improve and simplify data collection on site.
Interface issues and data inconsistencies
In our increasingly digital world, interface issues and data inconsistencies can lead to errors in quantity determination. When data is exchanged between various software applications (think CAD, AVA, estimation), the use of standardized formats like GAEB is absolutely crucial. Without GAEB standards, there can quickly be a loss of information or misinterpretations – and no one wants that. Therefore, clear contractual agreements about the data formats, software versions, calculation methods, and devices to be used should be established. This ensures that all project participants work with consistent data and that the results are quantity determination according to VOB comparable and traceable. Using STLB-Bau in conjunction with Nevaris can, for example, help ensure standardized performance descriptions and thus more consistent data.Managing Planned vs Actual & Change Requests: Proactively controlling quantity determination according to VOB
The comparison between what was planned (planned quantities) and what was actually implemented (actual quantities) is a truly critical moment in the quantity determination according to VOB. This planned vs actual comparison not only serves the final billing but is also a super important control tool throughout the entire construction process. Unfortunately, discrepancies between planned and actual are not uncommon in construction projects and can have various causes – from changes in planning to unforeseen conditions on the construction site. Effective change request management, based on solid quantity determination, is therefore essential to keep costs and deadlines under control. We at Valoon GmbH are happy to help you establish a truly solid basis for this planned vs actual comparison and the often tricky management of change requests through transparent data collection and processing.
The significance of the planned vs actual comparison
The planned vs actual comparison in the context of the quantity determination according to VOB makes it possible to detect discrepancies between the original planning and the actual execution at an early stage. This is absolutely crucial for cost control, as changes in quantity directly impact project costs. If excess or shortfalls are identified in a timely manner, proactive measures can be taken – for example, adjusting the budget or seeking alternative solutions. The planned vs actual comparison also helps analyze the causes of discrepancies. Were they planning errors? Changed wishes of the client? Or unforeseen circumstances? These insights are invaluable for optimizing future projects and, of course, for achieving even more accurate quantity determination according to VOB. A look into a detailed VOB Part C Measurement and Billing PDF can often provide a good orientation for correct procedures.
Handling deviations and change requests
When the planned vs actual comparison highlights discrepancies that necessitate an adjustment of the agreed services or compensation, we speak of change requests. Professional change request management is crucial here to avoid conflicts and find a fair solution for all parties involved. The basis for any change request is a seamless documentation of the changes, additional services, and the resulting variations in quantities. Quantity determination provides the necessary, concrete data for this. A clear communication between the client and the contractor regarding the necessity and scope of change requests is just as important as a solid contractual basis that clearly regulates the handling of change requests. Early agreement on change requests can prevent lengthy disputes and ensure important project progress.
Key benefits of precise quantity determination and the planned vs actual comparison
A careful approach to quantity determination and the planned vs actual comparison offers a number of advantages:
- Cost control: By continuously monitoring quantities and costs, budget overruns can be detected early, allowing for countermeasures to be implemented. This is a core aspect of the quantity determination according to VOB and preserves your nerves.
- Transparency: A traceable documentation of all quantities and changes builds trust between project partners and significantly reduces the risk of misunderstandings.
- Legal certainty: Compliance with VOB regulations during quantity determination and billing minimizes the risk of legal disputes. This is especially true for tricky areas like Measurement of pipelines according to VOB and other specific trades.
- Efficiency increase: Digital tools and standardized processes greatly accelerate quantity determination and the planned vs actual comparison, significantly reducing administrative burdens.
Outsource quantity determination according to VOB? When it makes sense and what to look out for
Sometimes, it can be a wise strategic decision for construction companies to hand over the quantity determination according to VOB to external specialists. Given the complexity of VOB regulations and the high demand for accuracy, specialized external expertise can bring significant advantages. This is especially true for smaller companies that may not have the capacity or deep specialist knowledge for every trade. Outsourcing can help relieve internal resources, improve the accuracy of quantity determination and, much to the delight of many, ultimately save costs. However, before making such a decision, the pros and cons, as well as the various cost models, should be examined closely. Only in this way can it be ensured that outsourcing this process truly brings the desired added value.
Strategic advantages of outsourcing
Outsourcing the quantity determination according to VOB can bring some tangible strategic benefits. External specialists often bring a deep and up-to-date knowledge of VOB/C standards and their application in various trades. This minimizes the risk of errors and ensures compliant billing – a reassuring feeling. Additionally, companies can relieve their own employees from time-consuming routine tasks through outsourcing, allowing them to focus entirely on their core competencies. Especially during peak workloads or very complex projects, external support can provide the necessary flexibility. And let’s not forget: Improved accuracy through specialized service providers can lead to direct cost savings by avoiding overpayments due to incorrect quantities. The use of a professional construction software by the service provider is often a good quality indicator.
Cost models and their suitability
When it comes to outsourcing quantity determination, there are various cost models. Which one fits best depends on the individual project and specific requirements. A percentage-based remuneration, which is based on the order sum or the computed quantities, is a common model. Alternatively, a time-based remuneration can be agreed upon based on hourly or daily rates – suitable particularly when the scope of work is not yet entirely clear. A fixed price naturally provides the greatest cost certainty but requires a very precise definition of the scope of work. Companies should consider the complexity of the project, the level of detail in the planning documents, and the desired degree of cost control when selecting the model. A transparent cost structure is essential in any case – it is simply the basis for a fair partnership when it comes to quantity determination according to VOB.
Choosing the right service provider
Finding the right service provider for the quantity determination according to VOB requires a bit of research and care. References and proven experience in comparable projects and relevant trades are already important indicators. The qualifications of the service provider’s employees, especially their knowledge of VOB and specific ATV DIN standards, should also be questioned. Another important aspect is the technological equipment of the service provider: Do they use modern software for quantity determination and data exchange (i.e., GAEB-compliant)? A transparent working method and clear, open communication are also crucial for successful collaboration in this important step. It is definitely advisable to obtain quotes from several service providers and compare them carefully.Looking ahead: The future of VOB quantity determination – trends and technologies
Die quantity determination according to VOB is, like the entire construction industry, constantly evolving. Technological innovations and changing demands on construction processes contribute to a continuous transformation. Future developments will undoubtedly aim to further enhance accuracy, automate processes, and make collaboration between all project participants even smoother. Topics such as sustainability and resource efficiency are also gaining increasing importance and will naturally influence how quantities are determined and assessed. We at Valoon GmbH are keeping a close eye on these developments. Our goal is to continue providing you with solutions that best support your quantity determination and prepare you for tomorrow’s challenges. Because one thing is clear: adaptability to new technologies is a key factor for long-term success.
Innovations in quantity determination technology
Technology is rapidly advancing and offers some exciting new possibilities for the quantity determination according to VOB . Think of Artificial Intelligence (AI) and machine learning – these have the potential to automatically recognize patterns in construction plans and determine quantities even faster and more precisely. Augmented Reality (AR) and Virtual Reality (VR) could be used in the future to visually support and document measurements directly on-site. Sounds exciting, right? Just think of drone technology, which is already being used today to swiftly capture terrain data and large building geometries. These technologies will continue to change the way we conduct quantity determination according to VOB and lead us to even more efficient and transparent processes. drone measurement software genutzt wird, um blitzschnell Geländedaten und große Bauwerksgeometrien zu erfassen. Diese Technologien werden die Art und Weise, wie wir die Mengenermittlung gemäß VOB durchführen, weiter verändern und uns zu noch effizienteren und transparenteren Prozessen führen.
Adapting to new construction methods and materials
New construction methods, such as modular or serial construction, as well as the use of innovative and sustainable building materials, naturally also impose new requirements on quantity determination. Traditional methods and regulations may need to be adapted to truly address these developments. For example, quantity determination for prefabricated components requires entirely different approaches than for conventionally manufactured parts. The flexibility of billing systems and standards will be crucial in ensuring that innovations in construction are not held back. Continuous development of VOB and associated DIN standards is therefore absolutely necessary to ensure that this process remains a reliable and fair foundation for future construction projects.
The role of quantity determination in sustainable construction
The topic of sustainability in construction is fortunately gaining more importance, and the quantity determination according to VOB plays a significant role here. Precise quantity determination helps specifically to reduce material waste and optimize resource use. By accurately capturing the materials truly needed overorders can be avoided and waste minimized – not only saving money but also benefiting the environment. Additionally, quantity determination can contribute to better assessing the ecological footprint of building materials by providing quantities for life cycle analysis (LCA). In the future, aspects such as the proportion of recycled materials or the CO2 balance of construction materials could play an even greater role in quantity determination and the evaluation of construction services. All this supports the important goal of making construction projects more environmentally friendly and resource-efficient.Mastering quantity determination according to VOB: Your direct path to efficient and successful construction projects
As we have seen in this article, correct quantity determination according to VOB is truly one of the most important cornerstones for the success of your construction projects. It not only ensures that you are legally safe but also lays the foundation for accurate cost calculation, efficient project execution, and fair billing – and who wouldn’t want that? The complexity of VOB regulations, especially ATV DIN standards with their sometimes tricky measurement and deduction rules, requires care and expertise. But don’t worry: Digital tools and modern methods like BIM and REB offer invaluable support to make quantity determination more accurate, faster, and more transparent. We at Valoon GmbH see ourselves as your partner to optimize these processes in your company, thus significantly and sustainably improving communication and overall project management.
The central importance of accurate quantity determination
An error-free quantity determination according to VOB is not just a tedious administrative duty, but a real strategic advantage. Because let’s be honest: It minimizes financial risks, helps avoid trouble with contract partners right from the start, and simply lays a solid foundation for all commercial and technical decisions that arise during a project. From the initial cost estimate to the bid calculation and the final invoice – the accuracy of determined quantities is always of central importance. Companies that invest in high-quality quantity determination according to VOB benefit from smoother project workflows, better cost control, and ultimately greater profitability. So, it can be said: Mastery of this discipline is a clear sign of professionalism and success in the construction industry.
Recommendations for clients and contractors
To successfully master the challenges of the quantity determination according to VOB and make the most of it, we have put together a few recommendations for clients and contractors:
- Invest in training and further education: Ensure that your employees are always up-to-date with VOB regulations and the relevant ATV DIN standards. Knowledge is power here!
- Use modern software solutions: Rely on digital helpers to support quantity determination, measurement, and billing. Our measurement app and the Valoon platform are examples of how we can support you with innovative approaches.
- Establish clear processes and responsibilities: Define standardized procedures for quantity determination and clearly specify who is responsible for what. This creates clarity and avoids misunderstandings.
- Ensure seamless documentation: Document all quantity estimates, measurements, and changes carefully and in a manner that everyone can follow. This is invaluable when questions arise.
- Communicate transparently: Encourage open and honest communication among all project participants. This way, uncertainties can be resolved early.
At Valoon GmbH, we offer you comprehensive consulting and active support in optimizing your processes around this important step. We help you simplify data collection and sustainably improve the flow of information between your field staff and the office – to ensure everything runs smoothly.
Outlook on future developments
Die quantity determination according to VOB will continue to evolve, of that we are sure. Technological advances, especially in the fields of artificial intelligence and digital modeling, will further increase accuracy and efficiency. The growing demands for sustainability and resource conservation will also influence and shape the methods of quantity determination. It is crucial to actively monitor these developments and continuously adapt your processes. With Valoon, you have a partner by your side who is fully committed to innovation and helps you leverage the diverse potentials of digitalization for your quantity determination. Simply get in touch with us! We would be happy to provide you with individual advice and show you how to elevate your projects to a new level of efficiency. Register and discover more about our solutions at Contact.
What is the main purpose of quantity determination according to VOB?
The main purpose of the quantity determination according to VOB is the precise calculation of all construction services according to VOB regulations. This forms the basis for correct cost calculations, tenders, contract awards, and a traceable billing, thereby minimizing disputes.
Why are the measurement and deduction rules of VOB/C so important?
Die Measurement and deduction rules of VOB/C (e.g., for openings or recesses) are critical as they specify which components are to be measured or deducted in quantity determination. Their correct application is essential for fair and VOB-compliant billing and avoids financial disadvantages.
Do I need to pay special attention to anything for digital quantity determination (e.g., using REB processes)?
Yes, when using REB processes (regulations for electronic construction billing) for quantity determination, a prior contractual agreement between the client and the contractor is absolutely necessary. This also concerns the data exchange formats (e.g., GAEB DA11) and the calculation methods used.
How does accurate quantity determination help me avoid or better manage change requests?
A precise quantity determination according to VOB reduces ambiguities in the specification from the start, thus minimizing the risk of change requests. In case of changes, the planned vs actual comparison based on exact quantities provides a transparent and well-founded basis for calculating and substantiating change request claims.
Can digital tools really simplify and improve quantity determination according to VOB?
Definitely. Digital tools, such as AVA software, BIM applications, or apps for measurement recording, can significantly accelerate quantity determination according to VOB and increase accuracy. They enable more efficient data collection, automatic calculations and better documentation, which reduces errors and saves time. und eine bessere Dokumentation, was Fehler reduziert und Zeit spart.
What role does the specification (LV) play in quantity determination according to VOB?
Das The specification (LV) is the central basis for quantity determination according to VOB. It details all the services to be performed. The quantity determination serves to accurately quantify the items of the LV (planned quantities), which is essential for bid calculation and subsequent billing (actual quantities).
What are typical errors in quantity determination and how can I avoid them?
Typical errors include misinterpretation of plans, incorrect application of VOB/C rules (especially measurement/deduction rules) and inaccuracies in data entry. They can be avoided through training, the use of software with checking routines, clear processes, and careful documentation.
