Engineered timber is reshaping the European construction landscape, and at the centre of this shift sits a critical decision that every B2B timber dealer must understand: glulam versus solid log. The choice between these two building systems affects everything from structural performance and settling behaviour to dealer margins and after-sales liability. For partners supplying residential structures, garden buildings, holiday parks, and commercial projects, recommending the right system is not a matter of preference — it is a matter of technical accuracy and commercial strategy.
Eurodita manufactures both solid log and glulam structures at its Kaunas production facility, processing 150,000 m³ of Nordic spruce annually. This guide provides the technical comparison that B2B dealers need to advise their customers with confidence, select the right product for each project, and build a portfolio that maximises both revenue and customer satisfaction.
What Is Glulam?
Glued Laminated Timber — commonly known as glulam — is an engineered wood product manufactured by bonding multiple layers of dimensioned timber under controlled heat and pressure. Unlike solid log, which is machined from a single piece of timber, glulam is assembled from individual laminations (typically 30-45mm thick) with their grain orientations alternating. This cross-grain layering is the key engineering principle that gives glulam its superior structural properties.
The manufacturing process begins with kiln-dried Nordic spruce, conditioned to 16-18% moisture content in Nardi (Italy) kilns. Each lamination is visually and mechanically graded to eliminate defects — knots, splits, and resin pockets that would weaken a solid log are removed before bonding. The laminations are then coated with structural adhesive (conforming to EN 14080) and pressed together in hydraulic clamps. After curing, the resulting glulam beam or wall element is profiled on Hundegger CNC machines (Germany) and Auer CNC systems (Austria) to tolerances of ±2mm.
The result is a timber element that is dimensionally stable, predictable in its structural behaviour, and significantly stronger than the raw material from which it was made. Where a solid log retains the natural characteristics of the tree — including internal stresses, moisture gradients, and variable grain direction — glulam neutralises these variables through engineering. This is why glulam has become the material of choice for residential-grade structures, large-span buildings, and projects where long-term dimensional stability is non-negotiable.
Solid Log vs Glulam — Direct Comparison
The following table summarises the key differences that matter most to B2B dealers when advising customers or selecting products for their portfolio. Each factor has direct implications for project suitability, customer expectations, and after-sales requirements.
| Factor | Solid Log | Glulam |
|---|---|---|
| Settling | Up to 10% vertical settling over 12-24 months | Near zero — dimensionally stable from installation |
| Structural Strength | Standard (limited by natural grain) | Up to 70% stronger than equivalent solid timber |
| Maximum Span | Limited by log diameter and natural properties | Extended spans possible — column-free interiors |
| Cracking / Checking | Surface checks possible as timber seasons | Minimal — internal stresses neutralised by lamination |
| Maintenance | Regular treatment required (every 3-5 years) | Lower maintenance frequency due to stability |
| Initial Cost | Lower upfront investment | Higher initial cost (engineering adds value) |
| Total Cost of Ownership | Higher long-term (maintenance + settling remediation) | Lower long-term (stability + reduced maintenance) |
| Best Application | Garden buildings, seasonal structures, traditional aesthetic | Residential, year-round living, premium commercial |
Understanding this comparison enables dealers to match product to project with precision, reducing the risk of customer complaints and after-sales issues that erode margins.
When to Recommend Solid Log
Solid log construction remains the right choice for a significant portion of the timber building market. Dealers should recommend solid log for projects where traditional aesthetics, seasonal use, or budget constraints take priority over long-term structural performance.
Garden cabins (28-44mm wall thickness) are the core solid log market. These structures serve as home offices, workshops, storage buildings, and leisure spaces where year-round thermal performance is not the primary requirement. At 28mm, a solid log cabin provides an attractive, functional garden building at an accessible price point. At 44mm, the structure gains meaningful thermal mass suitable for three-season use in temperate climates.
Seasonal use structures — summer houses, fishing lodges, and holiday lets that are not occupied in winter — perform well in solid log. The natural settling process is less problematic when the structure does not need to maintain airtight thermal performance year-round. For holiday park operators purchasing volume, solid log at 34-44mm offers the best balance of cost per unit and visual appeal.
Budget-conscious projects benefit from solid log’s lower initial cost. When the end customer’s primary concern is upfront investment rather than lifecycle cost, solid log delivers genuine value. Dealers should, however, set clear expectations about maintenance requirements and settling behaviour to avoid disputes later.
Traditional aesthetic preference is a legitimate driver. Some markets — particularly in Scandinavia and alpine regions — value the visual character of solid log construction, including the natural checking and weathering that occurs over time. For these customers, solid log is not a compromise; it is the preferred product.
When to Recommend Glulam
Glulam is the correct recommendation whenever the project demands long-term structural performance, dimensional stability, or compliance with modern building regulations. Dealers who position glulam as their premium offering consistently report higher margins and lower after-sales costs.
Year-round residential structures require the dimensional stability that only glulam provides. A home occupied 365 days per year cannot tolerate the 5-10% settling that solid log undergoes. Glulam walls at 134mm or above deliver the thermal performance, airtightness, and structural integrity that residential building regulations demand across European markets.
Premium projects — architect-designed homes, luxury holiday lodges, and high-specification garden rooms — benefit from glulam’s precision. The material’s stability allows for larger windows, more ambitious floor plans, and tighter construction tolerances that premium customers expect.
Passivhaus and energy-efficient designs increasingly specify glulam at 180-220mm wall thickness. These projects target U-values that are difficult to achieve with solid log alone, and the near-zero settling of glulam ensures that thermal performance is maintained throughout the building’s service life.
Open-plan modern designs exploit glulam’s superior span capability. Column-free living spaces, vaulted ceilings, and large-format glazing are all achievable with glulam beams and wall elements that would be structurally impossible in solid log at equivalent dimensions.
Holiday parks and eco-resorts purchasing volume benefit from glulam’s lower total cost of ownership. Reduced maintenance cycles, fewer settling-related repairs, and higher guest satisfaction translate directly to improved return on investment per unit.
Glulam Wall Thickness Guide
Eurodita manufactures glulam wall elements in five standard profiles. Each profile is engineered for specific applications, and selecting the correct thickness is essential for meeting both structural requirements and customer expectations. The following table details the complete range.
| Wall Thickness | Wall Width | Best Application |
|---|---|---|
| 70mm | 130mm | Compact glulam buildings, garden offices, small studios |
| 88mm | 260mm | Smaller residential projects, holiday lodges, annexes |
| 134mm | 260mm | Standard residential — the most popular profile for year-round homes |
| 180mm | 260mm | Premium residential, Passivhaus-adjacent, colder climates |
| 220mm | 260mm | Maximum insulation, top-tier energy performance, extreme climates |
For reference, Eurodita’s solid log profiles are available at 19mm, 28mm, 34mm, 44mm, 58mm, and 70mm. The 70mm profile serves as the crossover point where dealers can offer either solid log (traditional aesthetic) or glulam (engineered performance) at the same nominal wall thickness, allowing customers to choose based on priorities rather than dimensions.
Production timelines vary by system: standard solid log structures ship within 2-4 weeks, bespoke solid log within 4-8 weeks, and glulam structures within 8-12 weeks. Dealers should factor these timelines into project planning and customer communication from the initial enquiry stage.
Profit Margin Comparison for Dealers
From a commercial perspective, glulam consistently delivers stronger margins for B2B dealers. The higher initial product cost is offset by several factors that directly improve the dealer’s bottom line.
Premium positioning commands premium pricing. End customers purchasing glulam residential structures accept higher price points because they understand they are buying engineered performance. Dealers who present the technical comparison effectively — using data from this guide — can justify the premium with confidence rather than competing on price alone.
Lower after-sales costs protect margins. Solid log structures may generate settling-related service calls, adjustment requirements for doors and windows, and customer concerns about surface checking. Glulam’s dimensional stability eliminates the majority of these post-installation issues, meaning the margin earned at the point of sale is retained rather than consumed by remediation.
Higher customer satisfaction drives repeat business. Dealers report that customers who purchase glulam structures are significantly more likely to return for additional projects or refer other buyers. The absence of settling issues and the consistent quality of the finished product build the trust that sustains long-term commercial relationships.
Portfolio diversification reduces risk. Dealers who offer both solid log and glulam can serve the full market spectrum — from budget-conscious garden buildings to premium residential projects — without turning away enquiries. This breadth of offering strengthens the dealer’s market position and increases average order value over time.
Conclusion
The choice between glulam and solid log is not a question of which material is superior in absolute terms. It is a question of matching the right product to the right project, the right customer, and the right market. Dealers who understand both systems thoroughly — and can communicate that understanding to their customers — will close more sales, generate fewer complaints, and build stronger businesses.
Eurodita manufactures both systems at its Kaunas facility, with the full private-label service that allows partners to present these products under their own brand. Explore the complete glulam range, review bespoke design options, or contact the partnership team to discuss your market requirements. For background on Eurodita’s manufacturing capabilities and B2B model, visit About Eurodita.
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