July 25, 2025

What is BIM (Building Information Modeling)

Table of Contents

With the steady rise of technology and AI, construction and architecture teams have transformed the way they work. Has it been a positive shift? Definitely yes! Among the many, what’s reshaping the AEC (Architecture, Engineering, and Construction) industry is BIM, short for Building Information Modeling.

Whether you're an architect who’s trying to simplify the design process or an engineer managing complex projects, understanding BIM is essential.

In this guide, we break down what BIM modeling is, how it works, and why it’s becoming the industry standard for building practices.

What is BIM?

According to National BIM Standard-United States (NBIMS-US), Building Information Modeling (BIM) is defined as a digital representation of physical and functional characteristics of a facility.

Simply put, BIM is a smart 3D model that helps you design, plan, manage, and collaborate on building projects within a unified platform.

But BIM software isn’t just about 3D drawings or pretty models. It’s much more than that. It brings all the important information about a building into one place. These are called BIM dimensions, which are as follows:

  1. Design information (3D BIM):
    It shows a 3-dimensional model of the building’s structure. It allows you to see how components such as walls, elevations, floors, windows, and others fit together.
  2. Timeline & Scheduling (4D BIM):
    It provides the construction schedule along with the timeline required for each part to be built. When the project progresses, the time data also updates accordingly.
  3. Cost estimation (5D BIM):
    It provides cost estimation based on material quantities, labour, and other elements. As the design evolves, the budget updates automatically.
  4. Sustainability metrics (6D BIM):
    This dimension provides information regarding the building’s energy consumption, material efficiency, and carbon footprint. This helps in creating eco-friendly buildings.
  5. Operations and maintenance data (7D BIM):
    It provides data related to facility management. This includes asset data, warranty information, operation manuals, and technical details, all of which are crucial for managers and stakeholders.
  6. Health and safety measures (8D BIM):
    It predicts any possible site risks or chances of injury on-site. This data is invaluable during the construction stage as it allows workers to be aware of potential danger locations and be more cautious.

Together, these dimensions make BIM software far more than just a design tool. It becomes a complete source of truth. From architects and engineers to stakeholders and contractors, BIM software allows everyone to work with up-to-date information. This leads to fewer errors, better collaboration, and productivity.

Why is BIM Important?

BIM software has revolutionized the way AEC professionals work. It becomes a centralized hub to access drawings, project data, timelines, cost, and other information. This means everyone involved can work and collaborate on the same model in real-time. Instead of panicking about errors after they happen, BIM helps you prevent them in the first place.

Here’s why BIM is a better way to work:

  • Everyone can work on the same model simultaneously
  • You can detect clashes or errors beforehand
  • Any change made will automatically update across the model
  • Teams can plan better with clear timelines
  • It helps reduce waste, cost overruns, and project delays
  • Facility managers get all the information they need for future maintenance

Consider this scenario:

Let’s say a firm is designing an apartment. Without BIM software, there would be constant back-and-forth, miscommunications, and delays. If an architect makes a change, the structural engineer has to be informed about the change, and it’s a never-ending process. However, by using a BIM integration platform, from the architect to contractor, everyone works on the same model together in real-time. When someone makes an edit, the other parameters related to it will also automatically update. This makes the process streamlined and efficient.

Key Features of BIM

Some of the key features of BIM are as follows:

  • 3D modeling: You can view a digital version of the building before it's built. This helps everyone understand how the building will look and work.
  • Central place for all data: All drawings, data, and edits are stored in one model.
  • Real-time collaboration: Architects, engineers, contractors, and everyone involved can work together on the same model and see changes instantly.
  • Clash detection: BIM integration helps to spot clashes early so you can fix them before construction starts.
  • Timelines and schedules: You can map out when each part of the project will be done. It keeps things on schedule.
  • Cost estimation: Know how much materials and labour will cost before starting the project.
  • Facility management: Stores data such as warranty information, asset data, operation manuals, and technical details, which will be useful in the later stages.

Different Levels of BIM (BIM Maturity Levels)

BIM isn’t just one fixed system. It’s used at different levels, depending on the amount of information shared and the level of team collaboration. These levels are referred to as BIM maturity levels.

Level Description Collaboration Tools Used
Level 0 Only paper-based drawings or basic 2D CAD None Paper, 2D CAD
Level 1 Teams use their own 3D models but share information in a common format to stay coordinated Limited 2D/3D CAD, separate data
Level 2 Each team makes its own 3D models but shares data in common formats to stay aligned Full collaboration BIM tools with file exchange
Level 3 Everyone works on a single shared model in the cloud Full integration Cloud BIM, CDE platforms
Beyond Level 3 Still evolving. Focuses on advanced digital integration with smart systems like digital twins and AI Connected systems and data use IoT, AI, digital twin tools

Popular BIM Tools in the Market

Tool Best For Platform Key Features Pros Cons Cost Visit
Snaptrude Teams that want to design together in real time, directly in the browser Web-based 3D modeling, live collaboration, easy sharing, works in any browser Very fast and user-friendly, no downloads needed, great for remote teamwork Still adding features, limited offline use Free plan available. Custom pricing for paid plans Learn More
Revit (Autodesk) Large AEC firms that need full BIM from design to documentation Windows Architecture, MEP, structure modeling, parametric design, schedules Very powerful, industry standard, strong community support Can be complex to learn, requires high system specs Paid. $380/month or $3,005/year. Flex option: 10 tokens/day Learn More
Navisworks (Autodesk) Clash detection and 4D/5D project review for large construction projects Windows Clash detection, model aggregation, simulation, timelines Good for project coordination, strong clash detection Not a design tool or modeling tool Paid. Starts around $145/month or $1145/year. Flex option: 4 tokens a day Learn More
Revizto Teams who want to coordinate and track issues visually in one place Windows, iOS, Android, Web Real-time issue tracking, 2D/3D model viewer, integrates with Revit, Archicad Easy to use, improves communication between teams Needs strong internet connection for smooth use Paid. Based on license type Learn More
Archicad (Graphisoft) Architects focused on design with good visual presentation Windows, macOS 3D/2D modeling, visualization tools, teamwork features Intuitive for designers, works well on Mac, good rendering Interface can feel dated; it has fewer tools compared to Revit Paid plans vary. Free trial available Learn More
Trimble Connect Construction teams that want to manage, share, and view BIM object Web, Windows, Android, iOS Model sharing, version control, task management Great for file sharing and team updates, cloud-based Access to rich features is only available with paid plans Free plan available. Paid plans vary Learn More
SketchUp Beginners and professionals who want simple, fast 3D modeling Web, Windows, macOS Easy 3D drawing, plugins, rendering extensions, component library Very easy to learn, fast modeling, huge library of models Has limited tools for large, complex projects Free (basic online). Paid options available Learn More
Vectorworks Architect Architects who want detailed modeling with strong 2D + 3D features Windows, macOS BIM + CAD hybrid, 2D drafting, 3D modeling, good rendering Combines 2D and 3D well, great visuals Slightly slower than others on large models Paid plans Learn More
Tekla Structures Structural engineers working on steel, concrete, and detailed fabrication Windows Detailed structural BIM, rebar modeling, steel detailing Very precise, excellent for construction-ready models Mostly focused on structure, not ideal for architects Paid plans Learn More
Allplan Multi-discipline BIM users looking for detailed coordination Windows Architecture + engineering tools, clash detection, open BIM support Good for coordination, detailed modeling Learning curve can be steep; interface could improve Free trial. Paid plans available Learn More

Future of BIM

Building Information Modeling (BIM) is changing how AEC teams work together. Below are a few key trends in the future of BIM integration:

  • Cloud-based BIM will grow more. Teams can work together from anywhere, anytime. This will save time, avoid mistakes, and help to make better choices.
  • AI and automation will be used more in BIM modeling. They will find errors early, make modeling faster, and improve designs.
  • Digital Twins will be a big part of BIM modeling. It is like a live digital copy of a real building. It helps to see how the building is working and manage it better.
  • Open BIM will be used more. It lets different tools and teams work together easily by using open formats.
  • BIM will help in smart city projects, green buildings, and eco-friendly designs. It will support better planning for future cities.
  • Robotics, prefabrication, and 3D printing will also be linked with BIM. This will change how buildings are made.

Overall, BIM modeling will become the heart of the AEC industry. It will be digital, smart, simple to use, and better for the environment.

Why Choose Snaptrude for BIM?

Snaptrude makes design and BIM work easier and faster. You don’t need to download heavy software or keep switching between different tools. Everything from 2D drawings to 3D modeling happens on one single cloud platform. It helps your team work together in real-time, even if you are in different places. This saves time, avoids mistakes, and keeps everyone on the same page.

Snaptrude is simple to learn and works smoothly, especially during early design stages. It also supports open formats, which means you can easily work with other tools or share files with your consultants.

If you want a fast, modern, and easy BIM tool for your projects, Snaptrude is worth a try.

**Explore Snaptrude and see how it can change the way you design.**

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