Table of Contents
How are bill of quantities calculated?
What Does a BOQ Include?
- The quantity of work for each list item and the measurement unit.
- The unit price of each item, which is calculated by each of the bidding contractors.
- The total price of each list item, which is calculated by multiplying the amount of work and the unit price.
What is the difference between estimate and bill of quantities?
the bill of quantities, determines the quantities of the various work sections involved in a project; the cost estimate, is the economic value of such quantities and the estimated total cost of works.
What is a bill of quantities contract?
A BoQ helps contractors produce an accurate and fair tender. Contractors use the document for material scheduling, construction planning, cost analysis and cost planning. The BoQ defines the extent of the work that needs to be carried out and also provides the estimated contract sum.
What is provisional sum in bill of quantities?
A provisional sum is an allowance included in a fixed price construction contract for an item of work that cannot be priced by the contractor at the time of entering the contract.
What is engineer’s estimate?
The Engineer’s Estimate is an important part of the overall design process. It is a determination of the construction costs for any given project. The estimate is then used for programming and funding proposes. The total cost for each item is then summarized to receive the overall engineer’s estimate.
Which of the following is a disadvantage of bills of quantity?
disadvantages: Approximate Bills of Quantities do not establish a firm cost for the work at the time the contractor is appointed, thus there is less price certainty. This is because the actual cost of the works is calculated only when the design is available and detailed re-measurements have been made.
What is price cost sum?
A prime cost sum (PC or PC sum) is an allowance, usually calculated by the cost consultant, for the supply of work or materials to be provided by a contractor or supplier that will be nominated by the client (that is, a supplier that is selected by the client to carry out an element of the works and imposed on the main …
What is Bill of quantities (BoQ) in construction?
Bill of Quantities also referred to as BOQ, is a document formulated in the construction industry to specify materials, labors, and their cost. It serves as a communication tool between client, consultant & the contractor. It is usually prepared by a cost consultant or a surveyor. Primarily there are two types of BOQs
What are boqs and how are they calculated?
Traditionally, BOQs have been calculated by construction estimators, who use the project drawings and technical specifications. This process was first carried out with manual drawings, and it became digital with the development of 2D drafting software.
How can I use the BOQ and Gantt chart to plan expenses?
Cost information from the BOQ can be combined with time information from the Gantt chart, to create a cost schedule. The project owner and the contractor can use this to plan expenses, making sure the funds are available when needed, avoiding project delays.
What is the BOQ used for in project management?
The BOQ is also a useful planning tool, since it can be used to estimate how the project costs will be distributed over time. Typically, the project schedule uses a Gantt chart where the scope is also broken down by areas. Cost information from the BOQ can be combined with time information from the Gantt chart, to create a cost schedule.