Economics

Concrete Is Eating Your Margins.

Take Back Your Floor Space.

Legacy walls consume valuable perimeter floor area. By replacing them with SteelLeanel prefabs, you recover exterior wall footprint into sellable internal floor space across every floor of the building.

1. Building Envelope

Building Length 80 m

Building Width 16 m

Floors 8 floors

Floor Height 3.0 m

Exterior Cladding 50 mm

Share of Windows 25 %

2. Commercial Benchmarks

Wall Price (Ex Works) € 250/m²

Market Sales Price € 6,000/m²

Wall Config: 198 mm (EI 90, 0.17 W/m²K)

Modify in Configurator

Outer Perimeter

192 m (24.0 m high)

Total GEA

10,240 m²

Net Exterior Wall Area

3,456 m²

Current Wall Spend

€ 864,000

Concrete SW 460 mm

Total NIA

9,540 m²

Wall Footprint: 700 m²

SteelLeanel 248 mm

Total NIA: 9,861 m²

Wall Footprint: 379 m²

+ 321 m²

More Sellable Space

142 t

CO₂e Saved

Added Project Revenue

€ 1,926,000

Replacing 460 mm legacy walls with 248 mm SteelLeanel (198 mm panel + 50 mm cladding) recovers 321 m² of exterior wall footprint into sellable space.

Scroll Down to Deconstruct Wall Layers Scroll to Deconstruct

ROI Config

Architectural Freedom

The exterior facade is 100% customizable to meet any architectural vision without altering the core structure. Whether you require masonry, wood cladding, metal cassettes, or rendered systems, the cladding can be pre-installed in the factory or applied on-site for a seamless monolithic finish.

Custom Facades Factory or On-Site

Instant Weather Shield

Achieve a weather-tight building envelope immediately upon installation. The structure is fully protected from the elements even before the final exterior cladding is applied, drastically accelerating the construction schedule. Battens and windows can be pre-integrated at the factory or installed on-site.

Zero Weather Delays Pre-Installed Windows

The Unitized Wall Panel

Engineered as a direct 1-to-1 drop-in replacement for midrise structural frames. Rapid mechanical fastening completely eliminates the drying and curing times associated with heavy concrete. Interior outfitting can begin immediately, drastically accelerating your overall project schedule.

Zero Drying Time Rapid Mechanical Assembly

Modularity

Sub-millimeter accuracy meets true modularity. The unitized panel is assembled from tightly joined robotic base units, forming a rigid structural backbone with built-in MEP service cavities. This modular foundation inherently enables Design for Disassembly (DfD), allowing the base units to be extracted and reused.

Modular Base Units Design for Disassembly

The Robot-Native Core

This is our technological moat. Our patented interlocking geometry bonds the light steel frame directly with high-performance rigid insulation in a single, continuous robotic process. This eliminates slow, error-prone manual insulation work—a historical industry bottleneck—guaranteeing flawless thermal performance.

Patented Geometry 100% Robotic Assembly

ROI Calculator Configurator

Engineering Hub

Wall Configurator

Configure fire resistance and thermal insulation to inspect real-time pre-engineered envelope cross-sections, material layers, and physical metrics.

1. Thickness

198 mm

2. Weight

29.5 kg/m²

3. Acoustics

R_w = 45 dB – 62 dB

R_w + C_tr = 40 dB – 55 dB

4. Interior Cladding

Gypsum impact + standard board 13 mm + 13 mm

5. Thermal Insulation

Continuous PIR board 120 mm

Mineral wool 50 mm in service cavity

0% Moisture Risk 100% Inorganic Immune to Mold & Rot

Technological Moat

We Didn't Automate Construction. We Redesigned It.

We produce the most cost-efficient walls on the market by replacing traditional construction methods with a proprietary, fully robotic manufacturing process.

Robot-Native Geometry

Engineered for robotics to eliminate manual assembly.

36 s

per m² assembly

80 %

less factory labor

Manufacturing OS

Translates BIM models directly into robotic machine code.

Track Record & Validation

Proven in the Wild. Ready for Scale.

Our core logic is de-risked from every angle: automated manufacturing verified, real-world durability proven, structural engineering academically validated and globally patented, all backed by a scalable Tier-1 supply chain.

From Timber Pilots to Steel Automation

Validated automated manufacturing logic upgraded to high-speed steel framing lines.

After successfully validating our automated assembly logic through 1st-generation timber deployments, we engineered the ultimate industrial upgrade. To unlock maximum robotic precision, eliminate moisture risks, and achieve global scalability, we transitioned our core architecture to light steel framing (LSF). This material evolution lays the foundation for our high-speed, fully automated mega-factories.

Base Unit Automation Timber-to-Steel Evolution

Commercial Deployments

Proven zero-defect performance across extreme Nordic environments.

Arctic Luxury Resort

Volumetric modules were manufactured off-site in Central Finland and transported fully furnished to the summit of the Kaunispää fell in Lapland. Enduring extreme wind, snow, and severe temperature and moisture fluctuations, the modules serve highly demanding luxury tourists. The result: zero defects and flawless structural performance.

Extreme Weather Endurance Volumetric Modular

Architectural Coastal Villa

Built along the Baltic coast under high wind loads, marine humidity, and driving rain. Delivered as unitized wall panels for a highly demanding industry authority. The complex included a 2-story luxury villa, garage, and sauna, all executed under a remarkably tight design-to-build schedule with zero compromises on quality.

Rapid Delivery Marine Climate Proven

Institutional Science & IP

Rigorously researched, independently validated, and globally protected.

Research & Engineering

Rigorously researched and validated by Tampere University and HAMK. Comprehensive testing covers building physics, structural behaviour and acoustic isolation. Hygrothermal analysis confirms zero thermal bridging and no internal condensation risk.

Building Physics & Acoustics

The Global Patent Moat

True innovation requires absolute novelty. The unique robot-native interlocking geometry of our walls is protected by 23 patents across the globe. This rigorous patenting process acts as the ultimate external validation of our technological novelty.

23 Global Patents

100% Circularity

Design for Disassembly (DfD) via standardized mass customization. An unbroken digital thread ensures every base unit is fully traceable, guaranteeing seamless future reuse instead of demolition. Dry connections allow complete component recovery.

Design for Disassembly (DfD)

Strategic Supply Chain

Global material leaders co-developing and securing our manufacturing pipeline.

Strategic partner in product development and our primary supplier of high-performance rigid insulation since our 1st-generation system.

Rigid Insulation

Strategic cooperation providing advanced adhesive technologies essential for automated robotic dispensing and permanent structural bonding.

Adhesives

Strategic supplier of high-precision cold-rolled steel strips, ensuring the exact tolerances required for our in-house roll-forming and robotic assembly.

Steel

Leadership

The Founders

Cross-disciplinary expertise in construction, materials science, industrial manufacturing, and digitalization required to execute the transition.

Jarmo Kinnunen Co-Founder

35+ years of executive experience in construction, project management, and scaling industrial operations.

CEO

Jorma Kinnunen Co-Founder

Extensive materials science expertise with over 30 years of experience in global LSF business and product development.

CTO

Jesse Kinnunen Co-Founder

A full-stack construction engineer bridging digital design and physical manufacturing to ensure flawless automated execution.

CDO

The Next Generation of Exterior Walls

Higher Performance. Thinner Walls.
More Sellable Space.