If you own an iPhone 12 Pro or newer, you already have a professional-grade laser measuring tool in your pocket — and most contractors have no idea it exists. The LiDAR scanner built into iPhone Pro models can measure an entire room in under 60 seconds, with accuracy within a few centimeters, and automatically generate a floor plan you can share with clients, architects, and subcontractors.
This guide explains exactly what LiDAR scanning is, why it matters for contractors, and how to start using it on your next job today.
What Is LiDAR?
LiDAR stands for Light Detection and Ranging. It works by emitting thousands of invisible laser pulses per second and measuring how long each pulse takes to bounce back. By calculating the distance to every surface it hits, the sensor builds a precise 3D point cloud of the surrounding space — essentially a digital twin of the room.
Apple introduced LiDAR in the iPhone 12 Pro in 2020, primarily to improve augmented reality performance. But contractors quickly discovered that the same sensor could replace tape measures, laser distance meters, and hours of manual sketching.
💡 Which iPhones have LiDAR? All iPhone Pro and Pro Max models from iPhone 12 Pro (2020) onwards include a LiDAR scanner. The standard iPhone models do not. All iPad Pro models from 2020 onwards also include LiDAR.
Why LiDAR Scanning Matters for Contractors
Traditional measuring on a job site involves a tape measure, a notepad, and a lot of back-and-forth. For a typical kitchen remodel, measuring the space accurately enough to order materials and draft a scope of work takes 45–90 minutes. For larger spaces — a full floor plan, a commercial buildout, a multi-room renovation — it can take half a day.
LiDAR scanning eliminates most of that time. Here is what changes when you start using it:
1. Faster Estimates and Proposals
When you scan a space on the first site visit, you leave with accurate measurements already captured on your phone. You can build your estimate that evening instead of scheduling a second measuring visit. Contractors who use LiDAR scanning report cutting their estimate turnaround time from 3–5 days to same-day or next-day.
2. More Professional Client Presentations
Instead of handing a client a hand-drawn sketch or a rough measurement list, you can share a clean, dimensioned floor plan generated directly from the scan. This level of professionalism differentiates you from competitors who are still using tape measures and graph paper.
3. Fewer Measurement Errors
Manual measurement errors are one of the leading causes of material waste and cost overruns on renovation projects. A missed inch in a kitchen can mean a cabinet that does not fit. LiDAR scanning captures the full geometry of a space, including angles and irregularities that are easy to miss by hand.
4. Better Subcontractor Coordination
When you have a precise floor plan from day one, you can share it with electricians, plumbers, HVAC technicians, and other subcontractors before they arrive on site. Everyone works from the same accurate measurements, reducing conflicts and rework.
How to Use LiDAR Scanning with Elio
Elio's LiDAR Scan feature is built directly into the mobile app. Here is the workflow:
- Open a job in Elio and tap the LiDAR Scan button in the job detail screen.
- Walk through the space slowly, pointing your iPhone at the walls, floor, and ceiling. The app shows you a real-time 3D mesh as it builds.
- Tap "Generate Floor Plan" when the scan is complete. Elio processes the point cloud and produces a clean 2D floor plan with dimensions labeled.
- Share or export the floor plan as a PDF directly from the job — to the client, to a subcontractor, or to Elio's AI Drafting tool to generate a full scope of work.
🔗 LiDAR + AI Drafting: Elio's most powerful workflow is scanning a space with LiDAR and then feeding the floor plan directly into AI Drafting. The AI reads the dimensions and generates a complete scope of work, material list, and construction document — in about 2 minutes.
LiDAR vs. Traditional Measuring: A Direct Comparison
Here is how LiDAR scanning compares to the traditional tape-measure-and-sketch approach for a typical 1,200 sq ft renovation project:
| Task | Traditional | With LiDAR (Elio) |
|---|---|---|
| Measure the space | 60–90 minutes | Under 5 minutes |
| Create floor plan | 30–60 minutes (manual sketch or CAD) | Automatic (under 60 seconds) |
| Measurement accuracy | ±0.5–2 inches (human error) | ±2 centimeters |
| Share with client/subs | Photograph sketch or re-draw in CAD | PDF export in one tap |
Getting Started Today
If you have an iPhone Pro, you can start using LiDAR scanning on your next job today. Download Elio from the App Store, create a free account, and open any job to find the LiDAR Scan option. No special training, no expensive equipment, no learning curve.
If you do not have an iPhone Pro, the LiDAR feature is also available on iPad Pro (2020 and later). The larger screen makes it particularly useful for scanning bigger spaces like commercial buildouts.
Try LiDAR Scanning on Your Next Job
Elio's LiDAR scanning is available on the free Starter plan. No credit card required.
Start Free Today →Frequently Asked Questions
Does LiDAR scanning work outdoors?
LiDAR works best indoors where surfaces are close enough for the laser to bounce back reliably. Outdoor scanning is possible but accuracy decreases significantly at distances over 5 meters. For exterior measurements, Elio's manual measurement entry is the better option.
How accurate is iPhone LiDAR for construction purposes?
iPhone LiDAR achieves accuracy of approximately ±1–2 centimeters under good conditions. This is sufficient for most renovation and remodeling work. For structural engineering or precise architectural drawings, a professional-grade laser scanner (such as a Leica or FARO) provides higher accuracy, but at a cost of $10,000–$100,000+.
Can I use the floor plans in CAD software?
Elio exports floor plans as PDF. For import into AutoCAD or other CAD software, you can use the PDF as a reference layer. Native DXF/DWG export is on Elio's roadmap for a future release.
What if my phone doesn't have LiDAR?
Elio also supports manual room measurement entry, which generates the same clean floor plan output — it just requires you to enter dimensions manually. The LiDAR scanning feature is available on iPhone 12 Pro and newer Pro models, and all iPad Pro models from 2020 onwards.
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