How to prepare construction cost estimate in the Philippines

The usual basis in preparing a cost estimate starts with the following references:

• Detailed drawing; and
• Technical specification (if not included in the drawings).

The above documents should be consistent with each other so that the Quantity Surveyor (QS) or Estimator is able to provide a reasonable cost estimate, otherwise, it will lead into assumptions which can higher the cost. 

Bill of Quantity (BOQ)

In some cases, the client provides the BOQ. If there's none, the QS will have to create the BOQ. This shall  pay item, description of works, quantity, unit, unit cost, and amount. Additional details that can be included are title of the project, client's name, project location, date of proposal, and contractor's name and logo. 

  

What is?

• Pay Item -item number of the works, can be a cost code number, or an standard pay item number. For government projects here in Philippines, it requires to follow the standard pay items being classified in Revised Standard Pay Item List for Infrastructure Projects. 
• Description of Works - scope of works to be described e.g. Backfilling and Compaction.
• Quantity - takeoff calculated quantity for the equivalent work.
• Unit - unit for measurement of the work e.g. square meter, linear meter, kilograms, etc.
• Unit Cost - price of the works described in the Description of Works. This will be derived in the Detailed Unit Price Analysis (DUPA) where cost components for material, labor, and equipment are being calculated. This unit cost could be inclusive of mark-ups and value added tax. 

To know how, watch the tutorial video below;

For your reference, download these templates of BOQ and DUPA:

Blank BOQ Template..xlsx

Detailed Unit Cost Analysis Template.xlsx

For concerns about these templates, please leave a comment below or send a message in my Facebook page ELglobo Academy.

You may want to avail an estimate reference which includes:

• Drawings;
• Quantity Takeoff;
• with DUPA; and
• exclusive freebies.

Please inquire and send an email request to elglobo.academy@gmail.com