Loose Timber House Project
At Hus i Bergslagen AB, we provide a modern, precise, and flexible solution for constructing loose timber houses (Lösvirkeshus). Our process is designed to support efficient on-site assembly without compromising on quality or customization. We deliver all structural components fully precut, labeled, and prepared according to your project's exact specifications. Each element is dimensioned and organized for optimal handling on-site, whether the assembly is carried out by your own team or a partner contractor. The house is then built element by element directly on the construction site. This method offers greater flexibility than prefabricated modules, especially in projects where access, transport, or customization requirements make factory-assembled elements less practical. Thanks to our detailed 3D modeling and labeling system, every part fits into place with high precision. We also provide comprehensive assembly instructions for each construction layer, from structural framing to insulation and finishing materials, ensuring a smooth and reliable building process.
Construction process
Step 1: 3D Model Generation
Based on architectural drawings (DWG/PDF formats), a full 3D model of the house is constructed. The 3D model is essential for material calculation, volume control, collision detection, and cost estimation. No offer is made without a completed and verified 3D model to ensure 100% material and cost accuracy.
Step 2: Volume Segmentation
The 3D model is divided into production and assembly volumes to optimize logistics and workflow:
For prefabricated builds, volumes are limited according to Swedish transport regulations (standard road transport dimensions).
For loose timber projects, volume segmentation is optimised based on the lifting capacity, number of assemblers, and site working conditions.
Step 3: Layer Structuring (Wall Section Decomposition)
Each wall element is structured in layers from exterior to interior:
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Outside layers: exterior panel (cladding), lathing (ventilation battens), wind barrier (vindfolie)
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Structural Frame + Mineral Wool Insulation
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Inside layers: vapor barrier (plastic foil), installation wall + additional insulation, OSB board (structural sheeting, gypsum board (interior finish)
Step 4: Component Extraction and Labelling
Each layer is decomposed into individual components. In the frame structure, every stud, beam, and sill plate is separated. Every component is assigned a unique identification label (ID) linked to the 3D model database.
Labeling allows for precise sorting, packing, transport, and on-site installation without interpretation errors. All the elements composing each wall are packed together for easy handling and assembly.
Step 5: Assembly Documentation
For each prefabricated volume or composing element, detailed waterproofed assembly drawings are generated. Assembly instructions specify:
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Element order
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Component placement
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Connection types (nails, screws, plates, etc.)
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Fastening standards (e.g., distances, edge spacings)
Step 6: Floor Slabs and Roof Structures
Intermediate floors (slabs between levels) are produced and delivered following the same methodology (layered breakdown, component labelling, and assembly documentation).
Roof structures (takstolar) are fully prefabricated in the factory and installed on-site based on dedicated lifting and installation instructions.
Process Advantages
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Full traceability from model to finished structure.
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100% material accuracy – no surplus or shortages.
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Optimized on-site work – rapid, error-free installation based on clear, step-by-step instructions.
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Transport and handling efficiency – no oversize risks or unloading issues.
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Flexible adaptation – construction solutions adjusted to project-specific requirements.
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Each drawing contain a QR code where you can easily see the 3D model and get a good understanding of each element location