Criticality of engineering drawings in Construction - Edgevarsity Blog Edgevarsity
Criticality of engineering drawings in Construction

Criticality of engineering drawings in Construction

Just dreaming is of no use unless you realize it or manifest it. A dream or thought seen by our great personalities came to reality with a plan and a layout. When we see high rise building, skyscrapers, it is not just a mere thought but a concrete plan or sketch on a piece of paper.

If we talk in technical terms, every beautiful masterpiece or engineered product is a thought impressed on a paper; we call Engineering drawing.

What is an engineering drawing? Let’s revisit. An engineering drawing is a category of technical drawing to define the requirement for engineering products or components.

Why is Engineering drawing important?

An engineering drawing is crucial as it helps to communicate the technical details in a standard format. Engineering drawings are taught when we hit the engineering college (be it Mechanical, Civil, Architectural, Electrical, Aerospace, etc.), but it forms an integral part of the studies, especially for students into Construction and Architectural engineering. Drawings must be complete and accurate before being used in projects. 

Engineering drawings serve as the guide to construct the desired product or structures with exact accuracy based on specifications. The specification enlists the project objectives, functionality, and process of meeting the requirements. Here, engineering drawings become the measuring stick for compliance with the specification.

Criticality of engineering drawings in Construction of complex infrastructure

Proper infrastructure is a crucial part of any project. Therefore, the task of its construction is a high priority thing. The primary purpose of drawings specifically for this domain is about providing the exact details for an accurate graphic representation of what is to be built. Construction drawings should be precise and coordinated to avoid errors and confusion wherever possible. Any minor mistake might lead to the rise of several risk elements. Therefore, proper coordination through accurate drawings is significant to avoid any delays and misunderstandings.

Language of engineering drawing

Engineering drawings serve as an essential part of communication between the designer and manufacturer. Let’s see how engineering drawings alleviate the communication gap.

Say, Rob is a design engineer in Boeing in the US. He needs an aircraft component to be manufactured in Japan. Rob does not speak Japanese, and his manufacturer does not speak English either. How does Rob ask his manufacturer to build a component according to the specifications he wants?

This is where engineering drawing comes in. Rob can make a drawing of the part he wants. The manufacturer should interpret this drawing to figure out what exactly Rob wants. So we adopt universal rules for interpreting the drawing.

When we talk about the medium of communication through drawings, there are specific standard requirements. Let’s check the language of engineering drawing.

Geometric representation – overview, index

Specification for Implementation – Definition, method and material

Resource requirements – description, measuring unit, the quantity involved

You can say that engineering drawings are the language of engineers.

Engineering drawings used for Construction are not simple sketches on plain paper but much more beyond our imagination. If this interests you, check out more details through oil and gas piping engineering.

Essential facts about engineering drawing in Construction

Architectural and Civil Drafters are the personnel involved in preparing detailed drawings of architectural and structural features of buildings or drawings and topographical relief maps used in civil engineering projects, such as highways, bridges, and public works. To complete the drawings, they use the knowledge of building materials, engineering practices, and mathematics.

Some of the background work for the preparation of a full-fledged engineering drawing involves

  • Operation of computer-aided drafting (CAD) equipment or conventional drafting station to produce designs, working drawings, charts, forms and records. 
  •  Accurate analysis of building codes, by-laws, space and site requirements about architectural designs.  
  • Design and draw maps or diagrams using cross-sections and surveys to represent elevations, topographic contours, subsurface formations and structures. 

Now that we have discussed a lot about the engineering drawings let’s see the types of drawing used in an important sector: Oil and Gas. They say, “To be an expert Oil and Gas Engineer, the first step is to be an expert in engineering drawings.”

Apart from the regular drawing in Construction, specific major drawings are used in giant industries such as the Oil and Gas sector.

 In this sector, the projects are generally large and complex. Therefore, we use different sets of drawings. 

They are:

  1. Piping and Instrument Diagram also called P&ID
  2. General arrangement drawing, or GAD 
  3. Equipment drawing
  4. Structural drawing
  5. Isometric drawing

If you are someone good at engineering drawings and looking for a job-oriented course after graduation, you can dive deep into the engineering drawings domain. After the entire discussion, it must clear that the engineering drawings hold similar importance to the stethoscope for a doctor. To flourish in any profession, you must have the required knowledge of the subject. Similarly, engineers who have engineering drawings as their major should be versed with A-Z of engineering drawings.


by Debashree P

Debashree is an Aeronautical engineer by education and a curious researcher by passion. She is passionate about engineering and technology. She is an avid technology writer who has a knack for developing content for websites, newsletters, blogs, articles, advertising and marketing materials based on the requirements. Technologies of her interest include Aviation, Oil & Gas and AI.