Service specifications in construction and interior design: definition, content and meaning

A bill of quantities is an important step in any construction project. But what exactly does a bill of quantities contain - and why is it so important? Find out more here!

Estimated reading time: 5 minutes

What is a bill of quantities in construction?

Bills of quantities play a central role in the construction industry. It is a document that lists all the construction services required for a building project.

There are two types of service specifications: Trade-specific service specifications and overall service specifications. The difference lies in the way they are broken down. 

• A Trade-specific bill of quantities contains only the services of a single trade, such as painting work or electrical installations. It is used to tender services specifically to specialised companies.

• A Overall service catalogue on the other hand, bundles all the trades involved in a project into a single document. It therefore provides a complete overview of all the work involved in a project. 

A bill of quantities is often drawn up on the basis of the Procurement and Contract Regulations for Construction Work (VOB) created. These regulations set out the binding rules for the tendering and awarding of construction contracts.

A bill of quantities is usually drawn up by architects, civil engineers or specialised planners, in close cooperation with the client and the specialist companies involved. As this is a highly complex document, it is important that it is drawn up by experts in the field.

What is the significance of a bill of quantities?

A bill of quantities ensures clear communication between all parties involved, i.e. between the client, the planners and the construction workers. It serves the client as a basis for comparing other offers, which are also presented in the form of a bill of quantities. 

In addition, a carefully prepared brief prevents any misunderstandings or even disputes, as everyone knows exactly what the expectations, costs and time frame are.

In short: a bill of quantities is essential for a construction project and it is the basis for all transparency and traceability in project management. A construction project can only succeed efficiently and smoothly with precise, professional specifications.

What is the content of a bill of quantities in the construction industry?

But what exactly does a bill of quantities contain? Normally, a bill of quantities comprises the following elements. Firstly, there is the project description, which also contains information about the client and the location. The aim here is to clearly define the scope of the construction project and provide all parties involved with an overview.

This is followed by a service description that is as detailed as possible. It contains a precise description of all the work to be carried out.

This also includes a detailed list of all the materials used. Information is also provided on the quantity and quality of the materials.

Special requirements such as specific regulations, standards or construction methods are also addressed in the specifications. 

Finally, a bill of quantities also contains the most important time specifications, i.e. the construction schedule including all deadlines. 

As the creation of a bill of quantities requires a high level of accuracy and expertise, it is advisable to call in professional help. This ensures that all relevant regulations are adhered to and misunderstandings in the construction process are avoided.

Advantages of a bill of quantities:

A bill of quantities has many advantages. On the one hand, it enables a very precise Estimate of the costs incurred. This makes an LV an important component of budget control.

Secondly, an LV is the basis for legally binding contracts. In the event of disagreements, the various parties can refer to a bill of quantities - for example, if the project takes longer to complete than originally specified in the bill of quantities or if the costs increase. 

And finally, a service specification also has the effect that it leads to a increased efficiency leads: Since everything is planned thoroughly at the beginning, mistakes can be avoided later on - and in the best case scenario, the project can be completed on time and on schedule!

Conclusion

A bill of quantities is an essential part of any construction project. Just as important, of course, are the specialists who then turn the plan into reality. 

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We help you to quickly and easily find qualified specialists from all kinds of sectors - including the construction industry. Contact our team if you have any questions about temporary labour or specifications in construction and interior design. We will respond within one working day - and will be happy to provide you with a non-binding offer to recruit temporary workers for your company!