Mastering VOB measurement: Your key to precise and fair construction billing
A precise measurement according to VOB standards – here at Valoon, we know this is the be-all and end-all for every correct and comprehensible billing in the construction industry. It involves much more than just recording the services rendered; it creates transparency and fairness between you and your clients. Without a carefully prepared measurement? Discrepancies and, yes, even financial disadvantages can quickly arise. The Contract Award and Construction Regulations (VOB) provide us with the legal framework and define clear rules of the game – a real anchor, especially in the construction sector, where projects are often complex and multifaceted. This is where we, Valoon GmbH, want to support you: We help you optimize this process through digital data collection on-site and significantly improve the flow of information. In this guide, we want to show you how to create a measurement according to VOB standards measurement that is legally secure and auditable, and how our solutions can help you save valuable time and nerves. Because one thing is clear: A correct measurement secures your payment claims and minimizes the risk of disputes.
- Ensures correct and transparent billing.
- Creates transparency and fairness between contracting parties.
- Minimizes discrepancies and financial disadvantages.
- Based on the legal framework of the VOB for clear rules of the game.
The importance of a detailed measurement cannot be overstated. It documents exactly what work has been carried out and to what extent – a must, especially for unit price contracts where remuneration is based on the quantities actually delivered. A defective or inaccurate measurement according to VOB can lead to significant financial losses or lengthy disputes, which we want to avoid together. The VOB, particularly Part C with the General Technical Contract Conditions for Construction Services (ATV), contains detailed requirements in this regard. Adhering to these standards is not only a matter of professionalism but often also a contractual obligation. With modern tools, such as those used for the quantity determination according to VOB , this process can be made significantly more efficient and error-minimized. The result? Faster and more accurate billing for all parties involved.Understanding the legal framework: VOB parts and BGB delineation – What you need to know for your measurement
VOB/A, VOB/B, and VOB/C – Here you will find the measurement rules
The Contract Award and Construction Regulations (VOB) are, as you surely know, divided into three parts. Each part regulates different aspects of construction contract law and is also relevant for your measurement according to VOB. Let’s take a closer look: The VOB/A (DIN 1960) deals with the general regulations for awarding construction services. The VOB/B (DIN 1961) contains the general contract conditions for the execution of construction services – particularly important for billing, as § 14 establishes the principles for measurement and billing. However, the crucial part for the technical details of the measurement is the VOB/C. It consists of a collection of General Technical Contract Conditions (ATV) that apply to specific trades (DIN 18299 to DIN 18459). Each of these ATV DIN standards contains detailed rules for billing and thus also for creating a measurement. For a truly comprehensive understanding, we recommend the as an indispensable reference work. This ensures that your measurement according to VOB standards meets all requirements.
- VOB/A (DIN 1960): Defines general provisions for awarding construction services.
- VOB/B (DIN 1961): Contains general contract conditions for construction execution, with § 14 establishing the principles for measurement and billing.
- VOB/C (ATV DIN standards): Includes trade-specific technical contract conditions with detailed billing rules (Section 5) for measurements.
BGB vs. VOB: Choosing the right regulation for your project – This is what matters
Fundamentally, the contract law for construction services is governed by the Civil Code (BGB), particularly §§ 631 et seq. BGB for the work contract, § 650a BGB for the construction contract, and § 650g paragraph 4 BGB regarding condition determination. The VOB, on the other hand, is not a law but a set of rules that – and this is an important point – only applies if it has been expressly agreed upon between the contracting parties. In public construction projects, this is usually the case, while in private projects, the inclusion of the VOB must be explicitly documented in the construction contract. A key difference lies in flexibility: The VOB often offers more detailed and industry-specific regulations, especially for changes after the contract has been concluded and for the measurement according to VOB standards. While the BGB sets basic requirements for the auditability of an invoice, the VOB/C provides concrete specifications for quantity determination and overmeasure rules. This greatly facilitates the creation of a precise measurement and can prevent disputes. Knowledge of both sets of rules is crucial to create the measurement according to VOB that is appropriate for your respective project and bill it in a legally secure manner. A craftsman measurement software can assist you in properly implementing the respective requirements – a real relief in daily operations.Optimize measurement creation: Together it’s better – and safer!
The joint measurement: The ideal case with legal protection
Das joint measurement, as provided in § 14 para. 2 VOB/B, represents the ideal case for us and offers the greatest security for both contracting parties. Here, the services rendered are jointly determined and documented by the client and contractor (or their representatives). This not only promotes transparency immensely but can also prevent many potential disputes right from the start – a win-win situation! The joint measurement is particularly important for services that will later be covered or are hard to access, such as in . Good to know: The client is legally obliged to participate in the joint measurement. If they fail to do so without valid reason, even though they were properly invited to the meeting, this can lead to a reversal of the burden of proof . This means that in the event of a dispute, you, as the contractor, no longer need to prove the accuracy of your measurement; instead, the client must prove its inaccuracy. A correctly conducted joint measurement according to VOB is thus a powerful tool for securing your own claims.
Unilateral measurement: Your strategies when the client does not cooperate
But what to do if the client does not participate in the joint measurement despite your request or refuses to cooperate? In such cases, you as the contractor are forced to create a unilateral measurement . While this is not the ideal case, it is still an important measure to secure your billing basis. The key here is the careful documentation of all circumstances. This includes proof of the proper invitation of the client to the joint meeting, preferably with proof of delivery. The unilateral measurement according to VOB standards should then be created in particular detail and comprehensibly. A comprehensive photo documentation of the services rendered, ideally including a tape measure or yardstick in the picture, as well as potential witness statements from employees or other uninvolved third parties can significantly strengthen the evidential power of your unilateral measurement. Here too, an app for measurement can be invaluable, enabling structured recording and documentation including photos directly on-site and thus supporting the creation of a robust measurement according to VOB standards – so you are on the safe side.Secure your payment: The measurement as the foundation for contract types and auditability
The direct link: How measurement and contract type go hand in hand
Das measurement according to VOB standards is the crucial basis for billing your construction services, especially for various contract types. In unit price contracts, which are very common in the construction industry, an exact quantity determination through measurement is essential since your remuneration directly depends on the determined quantities. Each item in the bill of quantities is multiplied by the determined quantity – precision counts here. But even in lump-sum contracts, a measurement can become relevant, for instance, when additional services not included in the lump sum are provided (also take a look at our change management according to VOB/B). For hourly wage work, the measurement serves to document the hours worked and material consumption. Even the Fee Scale for Architects and Engineers (HOAI) refers in § 34 Annex 10 to the importance of cost control through quantity determination during the project. As you can see, a precise measurement according to VOB thus serves not only as a basis for billing but also as an important tool for your project controlling.
Ensure auditability: Consequences and what your invoices must fulfill
An unaccountable invoice can have far-reaching negative consequences for you as the contractor – this is something we definitely want to avoid. According to § 14 No. 1 VOB/B, the invoice must be structured so that it is comprehensible and verifiable . If this auditability is lacking, the invoice does not become due, and the client is not obliged to pay until a corrected, auditable invoice is presented. A central component of auditability is a correct and detailed measurement according to VOB standards. This often includes measurement drawings or sketches that illustrate the determined quantities. The details must be so precise that a knowledgeable third party can easily understand the services and quantities. The deadlines for submitting the invoice (§ 14 No. 3 VOB/B) and for the client’s objection to the auditability (generally within 30 days of receipt, § 16 No. 3 para. 1 VOB/B, deadline calculation according to §§ 187 et seq. BGB) should also be kept in mind. The use of a construction software for calculations and billing can help you create auditable documents from the very beginning, including a clean measurement according to VOB.
Important aspects of auditability – What you should pay attention to:
To ensure the auditability of your measurement and the resulting invoice, we recommend you pay attention to the following points:
- Clarity: Your measurement must be clearly structured and easy to understand. Think of the auditor!
- Completeness: All services rendered must be recorded and described in detail. Nothing should be forgotten!
- Traceability: The quantity determination must be traceable for a knowledgeable third party without additional information. Plans, sketches, or photos can be worth their weight in gold here.
- Contract reference: The items in the measurement should be clearly assignable to the items in the bill of quantities or the contractual agreements.
- Correct calculation methods: The formulas and calculations used must be correct and comply with VOB/C specifications. Double-checking is best!
Trade-specific measurement (VOB/C): With detailed knowledge to millimeter accuracy
Overmeasuring and deductions: The subtleties of trade-specific rules – the devil is in the detail
The VOB/C contains specific rules in the General Technical Contract Conditions (ATV) for the individual trades regarding measurement according to VOB standards, especially on the often tricky topics of overmeasuring and deductions. These rules define how elements such as openings, recesses, or installed components should be considered in quantity determination. For example, under certain conditions, recesses up to a certain size are overmeasured, while larger ones must be deducted. For painting work (DIN 18363), similar, but detailed differing regulations apply – close attention is required. For tilers (DIN 18352), base tiles are treated separately. Roofers (DIN 18338) or scaffolders (DIN 18451) have their own regulations arising from the nature of their services. A deep understanding of the respective ATV is essential for drywall (DIN 18340), civil engineering (DIN 18300), or technical building equipment trades such as electrical (DIN 18382), plumbing (DIN 18381), or ventilation (DIN 18379). Only in this way can you create a correct measurement according to VOB and ensure flawless billing. Exact knowledge of these trade-specific details is truly decisive for a correct measurement according to VOB standards.
Openings, recesses, interruptions: How to measure correctly in detail
The VOB/C precisely defines how you must handle elements such as openings, recesses, and interruptions in the measurement according to VOB. Openings are cross-section weaknesses, the treatment of which (overmeasuring or deduction) depends on their individual size. Did you know? Since 2005, room-high openings are also considered openings. Recesses are free spaces for structuring wall and ceiling areas; their billing varies depending on whether the wall is measured by area or volume. Interruptions are separating sections in length measurements and are treated differently in shell construction than in finishing. The and must be applied precisely. For example, when billing by area measurement, recesses up to 2.50 m² are overmeasured. In length measurements, interruptions up to 1.00 m are overmeasured. These details are crucial for a correct measurement according to VOB and can have significant impacts on your billing amount. A careful familiarization with the specific ATV DIN standards of the respective trade is therefore essential. We know this can be complex, but using a construction software from RIB can help apply these complex rules correctly.
Checklist for your trade-specific measurements – This will keep you on the safe side:
To ensure that your trade-specific measurement meets the requirements of VOB/C, we recommend that you check the following points:
- Relevant ATV DIN standard identified? Ensure you are referring to the correct ATV for the trade to be executed. That’s the basis!
- Section 5 (Billing) of the ATV studied? This section contains the specific measurement rules, including the overmeasuring rules. All important information is contained here!
- Rules for openings, recesses, and interruptions understood? Clarify how these elements should be treated for your specific trade.
- Boundary dimensions for over-measuring and deductions known? Note the exact dimensions beyond which, for instance, openings must be deducted. This saves discussions!
- Special features for length, area, and volume measurements considered? The rules can vary depending on the type of measurement. A small difference can have a big effect!
Digital measurement solutions: How to increase efficiency and legal certainty in your operation
From Excel to app: The digital transformation of your measurement creation process
Digitalization has also transformed the measurement process – and that’s a good thing, as it offers significant advantages over traditional, manual methods! While Excel templates for a measurement according to VOB provide a certain flexibility and are still widespread, specialized software solutions and mobile apps enable a significantly higher efficiency, accuracy, and legal certainty. Important to know: According to § 14 para. 1 VOB/B, electronic construction billing is permitted and standardized by regulations like the REB (Regulations for Electronic Construction Billing). Digital tools allow digital data collection directly on-site, often conveniently using a tablet or smartphone. This reduces transmission errors and allows for the immediate integration of photos and notes – a real time-saver! Hierarchical project structures, comprehensive documentation of all measurement points, and seamless data integration with other systems (e.g., calculation software, bill of quantities software) are further unbeatable advantages. This means your measurement according to VOB standards is not only created faster but also more transparently and with fewer errors.
- Increased efficiency, accuracy, and legal certainty compared to manual methods.
- Enabling direct digital data collection on-site, which reduces transmission errors.
- Instant integration of photos and notes for comprehensive documentation.
- Improved data structuring and seamless integration with other construction software.
Typical measurement errors to avoid: How software helps you achieve greater precision
When manually creating a measurement according to VOB standards measurement, it is unfortunately easy for errors to creep in, leading to inaccuracies in billing and annoying disputes. Some of the most common errors, which we repeatedly see, include inaccurate measurements, overlooking items, incomplete documentation, or failing to register concerns or failing to timely document agreements. The incorrect application of overmeasuring rules or deductions according to VOB/C is also a frequent source of error. The use of specialized craftsman measurement software can help minimize these problems. Such programs often guide you through the process, point out necessary inputs, automatically and correctly calculate quantities according to the underlying VOB rules, and create comprehensive documentation. The ability to digitally capture and process data directly significantly reduces the risk of transposition errors or omitted details and ensures a robust measurement according to VOB. By the way, the use of drone measurement software for larger or hard-to-access areas is becoming increasingly important – an exciting development!Practical measurement templates: Templates and application examples that truly help you
Use free templates: What to consider when selecting to avoid pitfalls
On the internet and with various associations (e.g., ZVSHK) or software providers (e.g., Streit Handwerkersoftware), there are numerous free templates for measurements according to VOB. These can provide a good starting point, but we advise caution. A universally applicable template is rare. It is essential to critically evaluate each template and adjust it to the specific requirements of your particular project, the needs of your own company, and the currently valid legal regulations, particularly VOB/C. Ensure the template includes all necessary fields for comprehensive documentation (Item number, service description, unit, quantity calculation, unit price, total price, space for sketches and notes). The must always be clear, unambiguous, and verifiable – this is the A and O. An inappropriate or incomplete template for your measurement according to VOB can quickly lead to problems in billing. Here at Valoon GmbH, we therefore rely on digital solutions that combine flexibility with standardization to simplify your digital data collection on-site workflow and avoid such pitfalls.
Analyzed practical example: How to achieve a VOB-compliant measurement on the first try
Let’s consider a simple example of a measurement according to VOB standards measurement in the painting trade: painting a wall area. A measurement sheet could have the following structure: Item number (e.g., from your bill of quantities), a clear service description (e.g., “Painting wall area completely, dispersion paint, color tone at choice of the client, including necessary preparatory work”), the unit (m²), the measured dimensions (length x height of the individual wall sections), the resulting quantity calculation, and of course the columns for unit and total price. Important here is the correct application of the overmeasure rules of DIN 18363 for painting and varnishing work. Small openings (e.g., light switches, sockets) are usually overmeasured, while larger openings (e.g., windows, doors over 2.5 m²) must be deducted – pay close attention to the details here! A sketch of the room with the entered measurements can significantly enhance traceability. Collaboration with the client on verifying the measurement, ideally through a joint measurement, is also crucial to avoid later discussions about the created measurement according to VOB standards measurement. app for measurement A
software can greatly facilitate this process through structured input forms and automatic calculations and take a lot of work off your hands.
An auditable measurement sheet should contain at least the following information to serve as a solid foundation for your measurement according to VOB:
- Project data: Construction project, client, contractor, date of measurement creation – the basics must be correct.
- Item number: Unique numbering, ideally corresponding with the bill of quantities to ensure everything matches.
- Service description: Accurate description of the service rendered – leaving no room for misunderstanding.
- Area/location: Exact indication of where the service was rendered (e.g., floor, room designation) – for clear allocation.
- Measurements: Exact individual measurements (lengths, widths, heights, depths, etc.) – precision is required here.
- Quantity calculation: The calculated quantity of the service (e.g., m, m², m³, pieces) – the outcome of your precise measurement.
- Measurement unit: The unit used (e.g., m, m², pcs.) – for uniformity.
- Sketches/Photos: If necessary to clarify the measured dimensions – a picture often says more than a thousand numbers.
- Signatures: For joint measurements, signatures from both the client and contractor – for mutual confirmation.
Conflict resolution in measurement: Achieving fair results through transparency and cooperation
Communication as a foundation: This is how you create transparency and cooperation with your client
Open and transparent communication with the client is, from our experience, the best key to avoiding disputes regarding the measurement according to VOB standards. Clarify the procedure for measurement creation from the very beginning and actively invite the client to joint measurements. Joint on-site inspections, where completed work is jointly assessed and measured, build trust and help clear up misunderstandings early – this is a lived partnership. Remember: The client has a right to participate and review the measurements according to VOB/B. Take their comments and questions seriously and strive to resolve ambiguities immediately. Good documentation, which is also made accessible to the client, supports this process. Using a app for measurement, which facilitates easy sharing of the collected data, can be very helpful in laying the foundation for a fair measurement in accordance with VOB. A cooperative attitude often has a de-escalating effect and leads to quicker agreements – everyone benefits from that.
Dispute measurement: How to avoid escalations and respond professionally
Despite all efforts for transparency and cooperation, disputes regarding the measurement according to VOB standards can sometimes arise – this is not always entirely avoidable. If such a situation occurs, it is important to remain objective and professional. Keep all relevant documents, such as the construction contract, the specifications, daily construction reports, photo documentation, and of course the disputed measurements themselves, readily available. First, try to find a solution through direct communication with the client. Explain your position based on the facts at hand and the applicable VOB regulations. If a direct agreement is not possible, involving a neutral third party, such as a construction expert as a mediator, may be a sensible step. In cases of larger or fundamental conflicts regarding a measurement according to VOB, seeking assistance from a legal expert specialized in construction law may also become necessary to enforce your claims. A thorough acceptance according to VOB can also help reduce later disputes about the scope of services – an important point for prevention.Successful construction projects: Your measurement as a guarantee for fair and smooth billing
A correctly created measurement according to VOB standards is, we are sure, far more than just a tedious obligation – it is the indispensable basis for fair, transparent, and legally compliant billing in construction. It secures your payment claims and minimizes the risk of costly and time-consuming disputes. Adhering to VOB regulations, especially the detailed specifications in VOB/C, as well as open communication with the client are crucial for your success. We at Valoon GmbH understand the challenges you face as construction professionals on a daily basis and offer innovative solutions with our software to optimize your data collection and project management. The use of digital tools, ranging from app for measurement to comprehensive craftsman measurement software-packages can significantly simplify, accelerate, and reduce error susceptibility in the measurement process. Our advice: Invest in expertise and modern technologies to ensure your measurements are VOB-compliant and sustainably secure the success of your construction projects.
Continuous training in measurement and VOB is essential for every construction professional, as standards and technical possibilities are constantly evolving. Accurate measurement according to VOB requires care, detailed knowledge, and the right tools. We at Valoon want to support you in digitizing and simplifying your processes. Our platform is designed to improve communication between field staff and the office and to transform unstructured data into valuable project information. If you would like to learn more about how to optimize your measurement process and make your projects more efficient, do not hesitate to contact us. Register for a demonstration or request further information to discover how our solutions can help you master your next measurement according to VOB standards without any issues. Start now and take the next step towards more efficient and legally compliant construction billing. For individual consultation, we are happy to assist you – simply get in touch Contact with us. We look forward to hearing from you!
What is a measurement according to VOB and why is a template for it so important?
A measurement according to VOB is the detailed recording and documentation of construction services rendered as a basis for billing. A measurement according to VOB standards (template) helps to standardize this process, minimize errors and ensure that all VOB-compliant requirements are met, ensuring auditability and traceability.
How can Valoon GmbH help me with creating a measurement according to VOB?
Valoon GmbH optimizes your measurement according to VOB by simplifying data collection directly on site.Our software transforms everyday messenger communication, e.g., via WhatsApp, into structured, VOB-compliant project data. This reduces training effort and significantly improves the flow of information between field staff and the office.
What are the main differences between a measurement according to VOB and one according to BGB?
The BGB sets fundamental requirements for the auditability of an invoice. The VOB, especially VOB/C, provides more detailed, industry-specific rules for quantity determination, overruns, and deductions. The VOB only applies if it has been contractually agreed upon, while the BGB always serves as the legal basis.
Why is a joint measurement according to VOB/B § 14 Abs. 2 so advisable?
A joint measurement, where the client and contractor jointly determine the services, creates maximum transparency and avoids later disputes.In case of unjustified absence of the client, there may be a reversal of the burden of proof in favor of the contractor. What happens if my measurement and invoice are not auditable?
An non-auditable invoice, often due to a defective measurement, will
not be due. The client is not obligated to pay until a corrected, traceable invoice is presented. This can lead to. Der Auftraggeber ist nicht zur Zahlung verpflichtet, bis eine korrigierte, nachvollziehbare Rechnung vorgelegt wird. Dies kann zu significant payment delays. How do I find the right measurement rules for my specific trade in VOB/C?
The VOB/C contains specific ATV DIN standards for various trades
(e.g., DIN 18350 for plastering and stucco work, DIN 18363 for painting work). In Section 5 of each ATV DIN standard you will find the specific billing and measurement rules, including overruns and deduction rules for your trade. What advantages do digital tools offer for measurement according to the VOB template? finden Sie die spezifischen Abrechnungs- und Aufmaßregeln, einschließlich Übermessungs- und Abzugsregeln für Ihr Gewerk.
Welche Vorteile bieten digitale Werkzeuge für das Aufmaß nach VOB Muster?
Digital tools, such as software and apps, significantly increase efficiency and accuracy in the measurement process. They enable direct data collection on site, reduce errors, integrate photo documentation, and help ensure VOB compliance and auditability. What are typical errors in measurement and how does a good template help avoid them?
Common mistakes are
inaccurate measurements, incomplete documentation, incorrect application of overrun rules and failing to document agreements. A good , ideally digital, provides a measurement according to VOB standardsstructured guideline , minimizes the risk of omissions, and supports the correct application of VOB rules., minimiert das Risiko von Auslassungen und unterstützt die korrekte Anwendung der VOB-Regeln.
