A bill of quantities also provides the main contractor with measured quantities of works as identified on the project drawings and specification. It is important that a BOQ is prepared to a standard methodology recognised by everyone involved in the project to avoid any misunderstandings or ambiguities. A BOQ is also a valuable document during the process and settlement of any dispute resolution. This answer is a guide only. In the construction industry, the preliminaries basically refer to the indirect costs that are incurred during the execution of the project and are in fact inevitable for the completion of the project.
These indirect costs are grouped in a separate category as it is difficult to distribute them among the measured works. Costs for ensuring site safety. These works can be measured in different units such as meter, square meter, cubic meter, number, etc. The value of such measured work is obtained by multiplying the quantity and the prevailing rate of each item of the work.
Provisional sum basically refers to the price that is included for the various items of work that need to be carried out during the execution of the project but the price of those works cannot be quoted or fixed at the tendering phase.
Since the bill of quantities serves as a communication medium between the parties involved in a construction project, it is necessary that a standard that is widely accepted is used for its preparation.
Using construction estimating software is incredibly useful for formatting and organising the categories within your BoQ. This will help to group tasks that still need to be completed. For example, contractors can easily import their Bill of Quantities into Candy , manually add in items, allocate trade codes, and price bill items using plug rates, split plug rates and free format rate sheets.
By using software, contractors can also ensure that their BoQ layouts are consistent and have all the necessary columns. Having an accurately priced BoQ will eliminate unwanted rework, wasted time, and unnecessary expenses.
This will mean winning more bids and overall, happier clients. Toggle navigation. What is a Bill of Quantities?
A Bill of Quantities BoQ is a detailed and itemised pricing document. The BoQ is set out in accordance with a standard method of measurement. The BoQ is created and issued as part of the tender documentation, thus providing detailed information for the tenderer to submit an accurate estimate.
The BoQ provides sufficient information for the tenderer to price everything necessary to carry out the works, e. A detailed BoQ will also set out the out the terms and conditions of the construction contract and itemise the work involved. In such a case, the professional will have to quote it only on guesswork. It comprises the preliminary description of all assignments with a whole list of the materials used. Thus it provides a clear view to the contractor to complete the job.
It will function as a vital tool in the management of the project. In the construction project, time and cost are directly correlated to each other. If we complete the task within the time, it will save money automatically. The most significant advantage of the bill of quantities is it offers effective management of work. It would be clear for the administration to be fully conscious of the items, human resources, suppliers, time duration, etc.
It offers full transparency because all items with their quantities are specified. Hence everything becomes transparent automatically, which eliminates the chances of misleading practices. Rate Analysis For Cement Plaster. I have learn a lot about preparing a Bill Of Quantities.
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