Large timber storage buildings serve a diverse range of commercial, agricultural, and residential applications where enclosed, weather-protected space is required at scale. For B2B dealers, this product category represents a higher-value segment with strong margins and limited competition from mass-market suppliers who typically focus on smaller garden buildings.
This guide examines the engineering requirements, manufacturing processes, and supply options that dealers need to understand when offering large timber storage buildings to their customer base.
What Qualifies as a Large Timber Storage Building?
For the purposes of this guide, a large timber storage building is defined as any enclosed timber structure with a floor area exceeding 30 m² and intended primarily for storage, workshop, or commercial use rather than residential habitation. These buildings typically fall into the following categories:
- Commercial workshops: 40-120 m², used by tradespeople, artisans, or small manufacturing operations requiring covered workspace
- Agricultural storage: 50-200 m², for machinery, feed, equipment, or crop storage in rural settings
- Vehicle storage: 40-100 m², for multiple vehicles, boats, caravans, or specialist equipment requiring weather protection and security
- Estate buildings: 30-80 m², serving country estates, equestrian facilities, or rural hospitality operations
The distinction from standard garages or garden buildings is significant because large structures introduce engineering, manufacturing, and logistical requirements that demand specialist capability and experience.
What Engineering Specifications Are Required for Larger Structures?
Structural Calculations
Any timber building exceeding 30 m² or with spans greater than 5 metres requires formal structural calculations prepared by a qualified structural engineer. These calculations must address:
- Dead loads: Self-weight of the structure including walls, roof, floor, and any permanent fixtures or equipment
- Imposed loads: Floor loading (dependent on use, typically 2.5-5.0 kN/m² for storage applications), roof maintenance access, and snow loading
- Wind loads: Particularly critical for large structures due to increased surface area. Wind bracing, shear walls, and connection design must be calculated to BS EN 1991-1-4
- Seismic considerations: While not typically required in the UK, export markets may require seismic design to EN 1998
Wind Bracing
Large timber buildings require designed wind bracing to resist lateral forces. Common bracing methods include:
- Diagonal bracing: Steel or timber diagonal members in the wall and roof planes, transferring wind loads to the foundations
- Sheathing panels: Structural plywood or OSB panels fixed to the external frame, providing racking resistance across the entire wall surface
- Portal frames: Rigid moment connections at the eaves and apex, typically using glulam components or steel brackets
Roof Truss Design for Spans 6m+
Clear spans exceeding 6 metres require engineered roof trusses rather than simple rafter construction. Truss types commonly used in large storage buildings include Fink trusses (for spans up to 10m), scissor trusses (where higher central headroom is desired), and parallel chord trusses (for flat or low-pitch roofs). All truss designs are engineered to EN 1995 and manufactured with CNC precision to ensure correct geometry and joint positions.
What Wall Thickness and Construction Methods Apply?
Wall construction for large storage buildings must balance structural requirements, thermal performance (if applicable), and cost efficiency:
- 44mm solid log: Minimum recommended thickness for large storage buildings. Provides adequate structural performance for buildings up to approximately 60 m² in sheltered locations. Suitable for unheated storage applications
- 70mm solid log: Recommended for buildings exceeding 60 m² or in exposed locations. Provides superior wind resistance and the option for internal insulation if the building will be heated
- Glulam frame construction: For the largest structures (100 m²+) or those requiring clear spans without intermediate columns, glulam portal frame construction offers the highest structural capacity with the most flexible floor plan options
- Hybrid construction: Combining glulam structural frames with log infill panels, providing both the structural capability of engineered timber and the aesthetic warmth of solid log construction
Cladding Options for Frame Buildings
Where glulam frame construction is used, external cladding options include tongue-and-groove boarding (horizontal or vertical), shiplap boards, profiled metal cladding, or composite panels. The choice affects both appearance and maintenance requirements, and dealers should match the cladding specification to the intended use and setting of the building.
What Applications Do Large Timber Storage Buildings Serve?
Understanding the application range helps dealers identify and target the correct customer segments:
Agricultural Storage
Agricultural applications represent a significant market for large timber buildings. Timber is preferred for grain and feed storage due to its natural breathability (reducing condensation compared to steel) and resistance to the corrosive environments created by fertilisers and animal waste. Typical specifications include large vehicle-access doors, high eaves for machinery clearance, and ventilation provisions.
Commercial Workshops
Timber workshops serve tradespeople, artists, small manufacturers, and repair businesses. These applications typically require insulation (for comfortable working conditions), electrical installation, good natural lighting (through windows and roof lights), and durable flooring. The aesthetic quality of timber interiors is valued by businesses receiving customer visits.
Vehicle and Equipment Storage
Multi-vehicle storage buildings, boat houses, and caravan storage facilities require clear internal spans, large access openings, and robust security provisions. Timber construction is well-suited to these applications, with Eurodita garage and storage specifications available in sizes up to 80 m² from standard designs, with larger bespoke options available.
How Does CNC Manufacturing Ensure Precision at Scale?
Large timber buildings require manufacturing precision that manual production cannot consistently achieve. Eurodita uses Hundegger CNC technology (manufactured in Germany) to machine all structural components with tolerances of +/- ±2mm. This precision is critical for large buildings because:
- Joint accuracy: In a large building with hundreds of joints, even small dimensional errors compound to create significant assembly problems. CNC machining eliminates this risk
- Complex geometry: Roof trusses, angled connections, and curved components can be produced with consistent accuracy regardless of complexity
- Repeatability: For dealers ordering multiple units of the same design, CNC manufacturing ensures every unit is identical, simplifying installer training and reducing site-specific problem-solving
- Service routing: Pre-machined channels for electrical conduit, plumbing runs, and ventilation ducting are positioned with precision, eliminating the need for on-site routing that can compromise structural integrity
The Eurodita production facility processes approximately 150,000 m³ of Nordic spruce annually, with quality control procedures at each stage from raw material reception through kiln drying (using Italian Nardi kilns) to final component machining and packaging.
What Are Typical Lead Times for Large Custom Structures?
Lead times for large timber storage buildings depend on the complexity and customisation level of the order:
| Order Type | Typical Lead Time | Notes |
|---|---|---|
| Standard design (from catalogue) | 2-4 weeks | Pre-engineered designs with established production templates |
| Modified standard | 4-8 weeks | Standard design with dimensional changes, additional openings, or specification upgrades |
| Fully bespoke | 8-12 weeks | Custom design including structural engineering, CNC programming, and trial assembly verification |
| Volume orders (5+ units) | 10-16 weeks | Production scheduling for multiple identical or similar units |
Lead times include structural engineering (where required), production, quality assurance, and transport preparation. Delivery scheduling is coordinated with the dealer to align with site readiness. For time-critical projects, expedited production may be available by arrangement with the Eurodita production planning team.
How Can Dealers Offer Private-Label Large Storage Buildings?
Eurodita operates as a private-label manufacturer, enabling dealers to offer large storage buildings under their own brand identity. The private-label arrangement includes:
- Branding removal: All Eurodita identification is removed from the product, packaging, and documentation. The dealer presents the product as their own manufacture or exclusive supply
- Custom documentation: Assembly guides, specification sheets, and warranty documents are prepared in the dealer brand format
- Design service: Eurodita engineering team works with dealers to develop exclusive product ranges that differentiate their offering from competitors. This includes structural design, specification development, and production feasibility assessment
- Quality assurance: Eurodita quality systems operate regardless of branding, ensuring that private-label products meet the same manufacturing standards as Eurodita-branded output
- Confidentiality: The manufacturing relationship remains confidential. Eurodita does not disclose dealer relationships to third parties or end customers
For dealers building a premium brand in the large structures market, this private-label model provides manufacturing scale and engineering expertise without requiring capital investment in production facilities. Further information is available from the dealer partnership team.
Frequently Asked Questions
Do large storage buildings require planning permission?
Buildings exceeding 30 m² generally fall outside permitted development exemptions and require planning permission. Agricultural buildings may benefit from separate permitted development rights under Part 6 of the GPDO (General Permitted Development Order), which allows certain agricultural buildings up to specific size thresholds without a planning application. Dealers should advise customers to consult their local planning authority early in the project planning process.
What foundation is required for a large timber building?
Foundation requirements depend on building size, ground conditions, and intended use. Typical options include reinforced concrete slabs (100-150mm thickness for standard storage use, 200mm+ for heavy vehicle traffic), strip foundations with suspended timber or concrete floors, and pad foundations for frame buildings. A structural engineer should specify the foundation based on site-specific conditions and building loads.
Can large timber buildings be relocated?
Timber buildings manufactured with bolt-together connections can be disassembled and relocated. However, for buildings exceeding approximately 50 m², the economic and practical viability of relocation depends on the original specification (bolted vs adhesive connections), the condition of the components, and the logistics of disassembly, transport, and reassembly. Dealers should discuss relocation potential at the specification stage if this is a customer requirement.
What is the maximum size available from Eurodita?
Standard catalogue designs extend to approximately 80 m². Bespoke designs can accommodate significantly larger structures, with the practical limits determined by transport logistics (component sizes that can be shipped on standard road vehicles) and site access rather than manufacturing capability. For structures exceeding 200 m², modular designs that combine multiple structural bays are typically specified.
How do large timber buildings compare to steel portal frames?
Both materials are suitable for large-span buildings. Timber offers advantages in aesthetics, thermal performance, environmental credentials, and internal environment (natural humidity regulation). Steel offers advantages in maximum clear span capability and resistance to extreme point loads. For most B2B dealer applications (buildings up to 200 m² with spans up to 12 metres), timber construction delivers comparable structural performance with superior aesthetic and environmental characteristics. The Eurodita quality assurance programme ensures that all large structures are engineered to the required performance standards.
