sizeless
sizeless (founded by engineers from ETH Zurich and UC Berkeley) · Productivity · Business
sizeless is a spatial AI platform for underground infrastructure. It converts smartphone video of open trenches and house connections into centimeter-accurate 3D point clouds, 2D CAD as-built plans, and GIS-ready digital twins. It targets civil engineering firms, network operators, and district heating utilities that need compliant revision documentation without booking a separate survey crew. Spatial AI for underground infrastructure is a narrow niche, and sizeless stays inside it on purpose.
About sizeless
What Is sizeless
sizeless is a spatial AI tool. Field teams film an open trench or a house connection with an iPhone Pro. The platform's algorithms then reconstruct what was there as a 3D point cloud, a CAD drawing, and a GIS model. The pitch is simple: capture once, get every deliverable your team already works with.
So who is this actually for? The core user is a civil engineering or utility crew that documents trenches and house connections on a regular basis, day in and day out. It also suits network operators and district heating teams who need a repeatable record of what goes in the ground.
The company was founded by engineers from ETH Zurich and UC Berkeley, and the reconstruction algorithms were developed at ETH Zurich. That lineage shows up in how the product prioritizes measurement accuracy over flashy visuals. Everything is aimed at the centimeter-level detail that as-built documentation and billing actually depend on.
The main limitation is scope. sizeless isn't a general-purpose 3D scanning app. It won't help with indoor design, gaming assets, or marketing renders. It's specialized for trenches, house entries, and technical rooms, and it expects an iPhone Pro specifically rather than any phone with a camera. Pricing isn't published either; the company routes interested teams through a live demo request instead.
Getting Started
- Request a demo through the official site to see sizeless capture a trench or house connection on one of your own sites.
- Install the SiteScan iPhone app, the field capture companion for the platform.
- Film the open trench or house connection with a guided iPhone Pro workflow, using no extra hardware.
- Let the algorithms generate the 3D point cloud, then pull the DWG/DXF as-built plan and GIS model into your existing tools.
- Backfill the trench once capture is confirmed, since no separate surveying appointment is needed and the documentation is already generated from the video you just recorded on site.
Product Information
A quick look at sizeless's pricing, supported platforms, and performance.
Best for
The users, tasks, and scenarios where this tool fits best.
Users
- Civil engineering firms
- Network operators
- District heating crews
Tasks
- Trench documentation
- House connection surveys
- As-built revision documents
- Earthwork volume checks
Scenarios
- Backfilling the same day
- Faster billing cycles
- Catching construction errors early
Key features
Smartphone-to-CAD pipeline
sizeless takes a video from an iPhone Pro and outputs a 2D CAD as-built plan in DWG or DXF. Couplings and pipes are identified, so measurement extraction is faster than tracing from photos. No conversion step. For teams already working in CAD, the output drops straight into existing drawings.
Centimeter-accurate 3D point clouds
The reconstruction algorithms, developed at ETH Zurich, build a high-resolution 3D point cloud of the scanned trench. The result is detailed enough to serve as an objective record of dimensions and earthwork volumes. It works in basement areas where GPS signal fails. That matters. Basements are exactly where house entries need documenting.
GIS-ready digital twins
Beyond a flat drawing, sizeless produces a 3D model of the pipe route that includes house entries. These digital twins plug into modern GIS systems for planning and long-term maintenance. Your model keeps paying off after handover.
No specialist hardware or staff
Capture runs on an iPhone Pro your team likely already carries. No extra scanner. No separate crew. No specialist training needed, which means existing internal or external teams can handle a higher project volume through the same efficient workflows they already follow today.
Audit-proof revision documentation
Every capture leaves a continuous 3D record that includes third-party utilities and house entries. That record supports revision documentation and replaces manual sketches and disconnected data silos. When an auditor or reviewer asks what was in the ground, you have evidence, not a hand sketch. That's the whole point.
Pros and cons
Pros
- Turns a smartphone video into CAD and GIS deliverables, so no dedicated scanning hardware is required.
- Point clouds stay accurate in basements and other spots where GPS doesn't work.
- Documentation is available far sooner, which supports faster backfilling and billing.
- Built specifically for trenches and house connections, so workflows match how civil engineering teams already operate.
Cons
- Field capture requires an iPhone Pro, which rules out Android and older iPhones.
- Pricing isn't published, so teams have to request a demo and a quote before knowing the cost.
- The tool is narrow by design, and it won't help with indoor design, marketing renders, or general 3D scanning.
Frequently asked questions
sizeless documents underground infrastructure. It's civil engineering software that converts a smartphone video of an open trench or house connection into 3D point clouds, CAD as-built plans, and GIS models for utility teams.
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