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What Are Preliminaries In Construction?

Preliminaries are a concept that the majority of construction firms, project managers, and contractors will cover in their construction contracts. These preliminary costs, often known as prelims, cover all expenses involved with a building project as a whole, not just certain tasks or activities. Many people are still unaware of this, and they don’t even know about it.

Preliminaries In Construction

In this blog post, you will learn about the basics of preliminaries and how it is connected to construction. So take a moment and read the following details.

An Overview – Preliminaries In Construction:

In the field of construction, certain preliminary steps and considerations must be taken before any actual building or construction can take place. These preliminary steps are important in ensuring that the construction project is planned and executed properly, safely, and within budget. Here are some of the most important preliminaries in construction:

  • Project Planning.
  • Site Investigation and Analysis.
  • Permits and Approvals.
  • Procurement of Materials and Equipment.
  • Safety Planning.
  • The hiring of Skilled Workers.
  • Project Management.

What Does It Include? 

A preliminary list for construction is usually lengthy and includes prices for everything that will be included in the project. There are some common items, nevertheless, that are virtually always present.

Expenses of Management and Administration:

Payments to project managers, site managers, and other stakeholders are among these expenses. They work on behalf of the entire project rather than just a few specific parts. The owner benefits from more transparency, and it is simpler for the contractor to provide an accurate cost accounting when those expenses are included in the preliminary estimates.

Costs of Planning and Design:

The contractor must plan the work, and develop and maintain programs for all construction projects. This task cannot be allocated to a single work section. Also, the contractor must pay extra for the owners’ requirement for regular reporting on the status of the program. 

As contracts grow more collaborative, more contractors are taking on design work to make the most of their knowledge of processes and materials. This design effort frequently spans multiple work areas.

Site-Based Services:

Construction projects always include items that enhance the site so that construction can go more effectively and methodically, from access roads to erosion prevention. Environmental criteria for projects must also abide by regional and federal laws. 

When construction affects nearby buildings and neighbours, the contractor must budget for expenditures associated with minimizing damage or irritation. As a result, building preliminary costs also include these expenses.

Payments of Mockups, Testing, and Sampling:

Contractors are frequently required to provide mockups that show how finished key projects will appear when the project is finished by designers and owners. These mockups could be virtual, full-size, or both. 

To make sure they are fit for use, many construction-related components must first undergo testing. Concrete slab testing and randomly measuring lumber’s moisture content are two examples.

What Are The Construction’s Preliminary Percentages?

Preliminary percentages in construction refer to the cost of preliminary items or activities as a percentage of the total construction cost. These preliminary items or activities are the costs that are incurred before the actual construction work begins and are necessary for the successful completion of the project. 

The percentage for preliminary items varies depending on the type and size of the project but typically falls within a range of 5% to 20% of the total construction cost. It is important to include preliminary costs in the construction budget to ensure that the project is properly planned, executed, and completed within the allocated budget. 

By including preliminary costs as a percentage of the total construction cost, the project team can more accurately estimate the total cost of the project and ensure that there are no unexpected cost overruns that can delay or derail the project.


Therefore, construction contracts require contractors to be cautious and take into account all preliminary matters. Neglecting them and their costs could cause arguments and quickly exceed a contractor’s contingency. Still, if you need more details on this or want professional work, feel free to contact BUON Construction. They are highly expert and can guide you perfectly.