7 Questions to Consider Before Requesting a Quote for 3D Laser Scanning, CAD Drawings, BIM Models, or Digital Twins

Preparing for a Successful Project Quote: A Guide for Architects and Engineers

When engaging a service provider for 3D laser scanning, CAD drawings, BIM models, or digital twin creation, thorough preparation can significantly streamline your project. Clearly communicating project requirements at the outset accelerates the quoting process, helps prevent project delays, and ensures high accuracy in deliverables.

To help you compile the necessary information, we consulted with Nate Baker, 3D Laser Scanning Service Line Leader at GPRS. He shared seven key considerations that every architect and engineer should address before requesting a quote. Existing Conditions is now a GPRS company. Learn more about what that means for your projects, here.

‍

1. What is the Final Use Application of the Data, Drawings, or Models?

The purpose of the scan or model should be clearly defined. This will guide the service provider in selecting the right methodologies and tools, ensuring construction-grade accuracy for your final deliverables. For example:

• Creating an accurate record of a historical structure
• Gathering precise window and door measurements
• Developing 2D floor plans for space planning or interior design
• Generating a detailed scan-to-BIM model for facility management
• Conducting clash detection for complex mechanical equipment installations

By defining your final use case, you enable the provider to tailor their approach to meet your specific goals.

‍

2. What is the Scope of Work?

To provide an accurate quote, the service provider needs detailed information about the area to be captured. This includes:

• Square footage of the project
• Number of levels and specific areas of interest
• Whether the building is occupied or vacant
• Scope of work covering the interior, exterior, roof, or all three
• Presence of materials that could complicate the scan, such as glass or reflective surfaces

Pro Tip: Don’t assume that only requesting 2D floor plans will reduce costs. Most service providers create these plans using 3D models as a reference, so they are likely generating the model anyway.

‍

3. What File Types are Required?

It’s essential to specify the type of files you need for your project, as different formats and file types may influence the approach and cost. Key considerations include:

• Whether the point cloud should be colorized or presented as an intensity map
• If a 3D model should be included
• Additional requirements like 2D plans, elevations, or reflected ceiling plans

Clarifying these details upfront ensures the provider can deliver exactly what you need, avoiding unnecessary back-and-forth later in the process.

‍

4. What Level of Detail is Required for the 3D BIM Model?

‍Determining the level of detail (LOD) early on can drastically impact both the scanning approach and project cost. Consider whether you need:

• A true as-built model or a simplified design-intent model
• A basic architectural model or a highly detailed MEP model
• Different levels of detail for various rooms or building components

Example: Specify if you want only pipes over two inches modeled or if every conduit needs to be captured. The level of detail can be adjusted to fit your project’s requirements without compromising on construction-grade accuracy.

5. How Should the Data be Delivered?‍

Once you have defined the final deliverables, consider how you want the data handed off. Be specific about:

• The software you use and its version
• The desired file format (e.g., .rvt, .dwg, .ifc)
• Preferred delivery method: online sharing or a mailed hard drive

Pro Tip: Always verify software specifications to ensure compatibility with the files you receive. Mismatches can lead to delays and additional work on your end.

‍

6. What is the Project Timeline?

Communicate your project timeline clearly to align the provider’s work schedule with your project needs. Provide information on:

• When work can commence and if a purchase order is required
• Critical dates for on-site work, especially if specific site access constraints exist
• Any project phases or incremental delivery requirements

Planning ahead can help your provider allocate resources efficiently and meet your deadlines, whether you need a single day’s capture or phased delivery over several months.

‍

7. What are the Site Access Requirements?‍

Access constraints can impact both the timing and the cost of the project. Answer the following questions:

• Is there security or restricted access that requires special coordination?
• Are escorts or specific personnel needed to facilitate the scanning process?
• Are there safety protocols, such as training or testing, that must be met?
• Will the scanning occur during business hours, at night, or during planned shutdowns?

Clear communication about these constraints will ensure that the provider can adequately prepare and avoid any unexpected challenges on-site.

Expedite the Quoting Process and Ensure High-Quality Deliverables

By addressing these seven questions, you can significantly reduce project delays and ensure a smoother workflow. “A reputable 3D laser scanning service provider near you, like Existing Conditions, can guide you through these considerations and help you avoid unnecessary costs,” says Baker. “Answer these questions to the best of your ability, and you’ll be well on your way to a successful project outcome.”

Existing Conditions is now a GPRS Company, which means you get all the expertise and construction-grade accuracy you’ve come to expect from Existing Conditions with the expanded national team and firepower of GPRS backing it up. Learn more about our new partnership, here.

If you’re considering laser scanning for your next project, the team at Existing Conditions is ready to assist and provide high-accuracy solutions tailored to your objectives. Contact us today to discuss how we can help streamline your project from start to finish.