What is a bill of quantity in construction?

A bill of quantities (commonly known as BOQ or BQ) is a document prepared by a quantity surveyor or cost consultant to define the quality and quantity of works required to be carried out by the main contractor to complete a project.

What is the purpose of bill of quantity?

The prime purpose of the Bill of Quantities (BQ) is to enable all contractors tendering for a contract to price on exactly the same information. Subsequent to this, it is widely used for post-tender work such as: material scheduling; construction planning; cost analysis; and cost planning.

How do you prepare a bill of quantities in construction?

Drafting Your Bill of Quantities. Set up a spreadsheet for your bill of quantities. Include columns for the item numbers, description, unit of measurement, quantity, rate for the item, labor, and total cost for the item. Your item numbers will be consecutive, starting from 1.

What is Bill of quantities in civil engineering?

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.

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What is difference between BOQ and BOM?

While BOM is related to the list of inventory, including raw materials, parts, components, etc., BOQ lists the total number of materials required to complete a project. BOQs help project developers in getting detailed quotes for project requirements and BOM give a clarity on what all is needed for completion.

How is BOQ calculated?

The unit price of each item, which is calculated by each of the bidding contractors. The unit price must consider all costs involved: materials, labor, equipment, overhead and the contractor’s profit. The total price of each list item, which is calculated by multiplying the amount of work and the unit price.

Who uses a bill of quantities?

A bill of quantities (sometimes referred to as ‘ BoQ ‘ or ‘BQ’) is a document prepared by a cost consultant (often a quantity surveyor) that provides project-specific measured quantities of the items identified by drawings and specifications in the tender documentation for construction works.

Do I need a bill of quantities?

Bills of quantities are most useful to the contractor when they are prepared in work sections that reflect likely sub-contract packages. This makes it easier for the contractor to obtain prices from sub-contractors and is more likely to result in an accurate and competitive price.

What are the types of bill of quantity?

It is issued to tenderers for them to prepare a price for carrying out the works. According to NRM2, RICS new rules of measurement, Detailed measurement for building work, there are two types of bill of quantities; firm and approximate.

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What are builders quantities?

Builders Quantities This is a technical process relevant to builders and contractors and is the technique of measuring quantities of materials and labour from drawings, sketches and specifications prepared by designers, principally architects and engineers.

What is bom in construction?

A bill of materials ( BOM ) is an extensive list of raw materials, components, and instructions required to construct, manufacture, or repair a product or service.

How do you prepare a bill?

How to create an invoice: step-by-step

  1. 1. Make your invoice look professional. The first step is to put your invoice together.
  2. Clearly mark your invoice.
  3. Add company name and information.
  4. Write a description of the goods or services you’re charging for.
  5. Don’t forget the dates.
  6. Add up the money owed.
  7. Mention payment terms.

What is operational bill of quantities?

Operational bills are a tendering document for estimating costs prepared by architects that describes a construction project in terms of the operations (which include labour and plant) needed to build it. Operational bills were proposed and developed by Edward Skoyles at Building Research Establishment in the 1960s.

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