What is BOQ?

BOQ is the key to systematic construction planning and control. and will help set the framework to meet both time and cost goals. This document is therefore essential when starting a construction project. To help everyone involved adhere to the same working principles. 

But before getting the BOQ quotation, there are many steps that need to be known. and must ensure that the information contained in such documents is sufficiently detailed and accurate. Anyone who is interested in using the serviceConstruction Looking to hire a construction contractor or interior decoration contractor, you must therefore familiarize yourself with this document well. Because it will definitely help you benefit from reading BOQ.

Article table of contents

• What is the meaning of BOQ? Why must you read this document?
• Preliminary BOQ categories
• The importance of BOQ that construction workers must understand
• What are the benefits of doing a BOQ?
• Who should prepare the BOQ document?
• How to calculate BOQ step by step for easier understanding
• In conclusion, how important is it to understand what BOQ is?

What is the meaning of BOQ? Why must you read this document?

BOQ ย่อมาจาก Bill of Quantities คือเอกสารที่แสดงรายละเอียดงานก่อสร้างทั้งโครงการ ไม่ว่าจะเป็น ชนิดของวัสดุที่ใช้ ปริมาณ ราคา และระยะเวลาในการดำเนินการ ดังนั้น ใบ BOQ จึงเป็นเอกสารสำคัญที่ช่วยให้ประเมินได้ว่า การก่อสร้างภายในและรับเหมางานระบบต้องใช้งบประมาณรวมเท่าไหร่ หรือใช้เวลาในการก่อสร้างนานแค่ไหน ซึ่งช่วยให้เจ้าของหรือผู้บริหารโครงการเตรียมการรับมือกับปัญหาที่อาจจะเกิดขึ้นในอนาคตได้ และเพื่อให้การก่อสร้างเป็นไปอย่างราบรื่นได้มากที่สุด

Preliminary BOQ categories

Whether it's a turnkey job or a Built to Order job, all of them must have a certificate. BOQ to show details of all construction projects. And because this document contains a lot of important content. Therefore, it must be divided into categories according to the nature of work to make it easier to understand. The work can be divided into categories in the BOQ as follows:

Preparation for work 

Preparation consists of the steps that a construction contractor must take before starting construction. Or it is the cost of preparing various works, such as insurance costs, costs for creating shop drawings, travel expenses and worker accommodations. or the cost of protecting the area during construction. In addition, it also includes common expenses such as water, electricity, and the use of elevators. or cleaning costs during construction work and before delivery of the work

Interior work

Interior decoration work is work related to the interior design of buildings, such as floor work and structural wall work. Decorative wall work, ceiling work, etc.

System work

System work consists of installing various systems such as electrical systems, plumbing systems, sanitary systems, air piping systems, or drainage systems. Examples of expenses include wiring costs, plumbing installation costs, etc.

Other work

In addition to the work mentioned above There may be some work that cannot be classified in the previous category. Other work in the BOQ, for example, is the installation of special equipment. Examples of expenses include the cost of installing a burglar alarm, etc.

The importance of BOQ that construction workers must understand

BOQ is a tool that helps manage construction projects for maximum efficiency, so you should know the importance of this document. To help you make the most of your documents The importance of the BOQ sheet for contractors and project owners is as follows. 

• It is evidence to apply for a loan from the bank.
  Those who want to borrow to buy land with a clear construction plan can use BOQ is an important document to apply for a loan with the bank. and will help the bank approve the credit limit appropriate to the project that needs construction.

• Used to compare with the average price
  The project owner can use the information in the document to compare with the average price that is the standard price. To assess whether the contractor offers a reasonable price or not. This helps prevent the problem of being taken advantage of.

• Used to inspect work to see if it meets standards or not.
  This is because the BOQ document will detail the costs incurred in the project. Therefore, it helps the project owner to check the accuracy of the materials.และปริมาณที่นำมาใช้ตรงตามข้อกำหนดหรือไม่

What are the benefits of doing a BOQ?

After knowing how important BOQ is The next section will explain the benefits of doing a BOQ in detail, what they are, as follows.

• Helps to calculate costs accurately. : BOQ specifies quantities and materials in detail at every step. Therefore, it helps reduce errors in cost calculation.
• Helps to use resources efficiently : Details in the BOQ help to purchase materials appropriately, just in proportion, not too much to the point of wastage. or not too little until there is a shortage
• Helps increase transparency in construction : When the project owner and contractor have the same basic documents. It will help to track work easily and reduce the chance of corruption.
• Help manage time : The BOQ specifies each work step over time. Helps the construction process not be shortened. and help the project be completed on time.

Who should prepare the BOQ document?

Mainly, there are 2 groups of people who should prepare BOQ documents because they can be used to benefit construction projects as follows:

1. Designer or contractor

The designer or contractor can prepare a BOQ document to specify construction details for the project owner to consider. Setting standards and work details in the BOQ is a way to reduce conflicts between contractors and project owners in various cases. And if the price is reasonable and meets the needs of the project owner. It will help to have more opportunities to be selected to take care of construction.

2. People who have a plan to borrow money to build a building.

Those who own land and plan to apply for a loan to construct a project You can hire an architect or interior designer to prepare the BOQ as well because this document will be used in the loan application process. In order for the bank to consider granting loans according to the objectives desired by the borrower. Helps build confidence that the money approved by the bank will be used correctly. and provide a financial limit that covers construction needs

How to calculate BOQ step by step for easier understanding

Making a BOQ for construction requires detailed calculations. And there are steps before and after that you should know as follows:

Categorize work

Because construction consists of more than one category of work, categorizing work such as area preparation work, structural work, architectural work Interior work or various system work is therefore the first step that must be done In order not to mix up the list of materials required for each job.

Measure the area

so that the construction meets the needs What needs to be done in the BOQ is the exact measurement of the area. This will affect the calculation of the amount of various materials required for construction.

Market price survey

After getting the amount of materials used You must also know the prices of various materials. You can find out the prices by surveying various stores or construction material suppliers. This must be an up-to-date price for accurate calculations.

Calculate total material cost

Compiling all costs from all calculated categories to create a BOQ is an important step in helping to determine the overall material cost budget.

Calculate labor costs

In addition to the cost of materials Labor is another large expense that must be evaluated reasonably. This can be calculated from the number of days worked. Number of technicians required and wages per person per day to include in the total labor costs of the project

Total expenses

Take the calculated material and labor cost information. Find the total amount of the total budget required for the project to prepare the BOQ document.

สรุป BOQ คืออะไรสำคัญแค่ไหน

BOQ or Bill of Quantity is an important tool for controlling construction work. It helps project owners and contractors work together more efficiently. Control the budget so it doesn't escalate. and submit work on time. Because the details in this document will help manage work in various categories as planned. It is also useful in requesting loans from project owners. But understanding what BOQ means alone may not be enough. Because choosing a contractor with good skills is also very important.

IWA Design is a contracting business that provides construction services, interior decoration and complete engineering systems in both Turnkey Service and Built to Order formats that meet the needs of customers at all levels. which from past experience We are trusted by many world-famous brands such as ZARA, UNIQLO, MUJI or BURBERRY, etc.

Who needs a team of professional architects and engineers? Want to control budget and construction time, IWA Design Company asInterior design and construction Ready to take care of customers intently and pay attention to every detail can contact usเพื่อบอกความต้องการของคุณได้เลย

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