Guided iPhone capture
A guided SiteScan workflow on an iPhone Pro records open trenches, house connections, objects, and technical rooms without dedicated scanning hardware.
sizeless
sizeless is a digital-twin and automated documentation workflow for civil engineering and utility construction. Its SiteScan app turns guided iPhone Pro video captures of trenches and house connections into 3D point clouds, DWG/DXF as-built plans, and GIS-oriented pipe-route models.
Automated documentation for utility construction
sizeless is a digital-twin and automated documentation workflow for civil engineering and utility construction. Its SiteScan app guides an existing project team through recording open trenches and house connections with an iPhone Pro, then converts the video into structured 3D and CAD documentation.
The service is positioned for road and utility construction, district heating, and house connections. Its outputs include a high-resolution 3D point cloud, DWG/DXF as-built plans, and a 3D pipe-route model for GIS workflows, allowing teams to document installations before backfilling and use the resulting records for review, billing, planning, and maintenance.
Capabilities
3D point-cloud reconstruction
Algorithms developed at ETH Zurich generate a high-resolution, centimeter-accurate 3D point cloud from the recorded scene.
CAD as-built plans
The service creates 2D as-built documentation in DWG and DXF, helping teams identify pipes and couplings and simplify dimensioning.
Pipe-route digital twins
A digital twin represents the pipe route, including house entries, and can be connected to modern GIS systems for planning and maintenance.
Construction documentation
Documentation includes foreign utilities and house entries, providing a 3D record before the trench is backfilled.
Team-led field capture
The workflow is intended to let existing crews document connections independently, reducing reliance on separate surveying appointments.
Practical use cases
As-built records before backfilling
Record an open trench immediately after installation, generate as-built plans, and retain a 3D record before the excavation is backfilled.
House connections in constrained areas
Document service connections and house entries as part of the installation workflow, including conditions in basement areas where GPS is unavailable.
Faster measurement and billing workflows
Use the resulting DWG/DXF plans and pipe-route model to support connection billing, review dimensions, and identify pipes or couplings without arranging a separate measurement visit.
Utility network planning and maintenance
Capture district-heating and other utility corridors with foreign utilities included in the 3D record, creating source material for GIS-based planning and later maintenance.
Crew-led documentation at scale
Let existing installation crews perform guided field capture with a smartphone when project volume makes repeated manual sketches or separate surveying appointments impractical.
Pros and Cons
Pros
- Captures can be performed by the existing project team using a guided iPhone Pro workflow.
- Produces multiple documentation formats from one capture, including a 3D point cloud, DWG/DXF CAD plans, and GIS-oriented pipe-route data.
- Supports documentation in basement areas without GPS, according to the site.
- Records foreign utilities and house entries before the trench is closed.
- Aims to reduce waiting for separate surveying appointments and provide documentation earlier in the construction process.
Cons
- Pricing details are not published on the available pricing page.
- The published material does not specify the full range of supported devices, integrations, onboarding requirements, or workflow limitations beyond the documented iPhone Pro process.
FAQ
How is a trench or house connection captured?
The documented workflow starts with a guided video capture in the SiteScan app on an iPhone Pro. The existing project team can perform the capture at the open trench, without additional scanning hardware or a separate surveying appointment.
What outputs does sizeless provide?
The service processes the smartphone video into a high-resolution 3D point cloud and produces 2D CAD as-built plans in DWG/DXF. It also provides a 3D digital twin of the pipe route, including house entries, for GIS workflows.
Can the system be used in areas without GPS?
The site states that the workflow can be used in basement areas without GPS and can document foreign utilities and house entries. The published material does not define all environmental or project limitations.
Does the workflow require specialist surveying personnel?
The documented process is designed for existing project teams to capture house connections independently with a smartphone. The site does not publish detailed team permissions, onboarding steps, or account requirements.
How can organizations learn about pricing?
No pricing details are published on the available pricing page. The website instead provides a demo request form for interested organizations.
Quick Facts
- Category
- Digital twin and construction documentation
- Primary domain
- Civil engineering and utility construction
- Capture method
- Guided video capture with an iPhone Pro
- Documented outputs
- 3D point cloud, DWG/DXF, 3D model, GIS-ready data
- Relevant workflows
- Open trenches, house connections, district heating, technical rooms
- Website
- sizeless.co
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