At Donaldson Timber Systems, we do more than supply timber frame structures.
We provide a complete, all-inclusive service that combines technical expertise, accredited products, qualified installation teams, and local construction management, all designed to give our customers total confidence from design to handover.
Our difference is simple: we take responsibility for performance, quality, and delivery, so you can focus on building homes faster, safer, and smarter.
More than timber frame, complete project confidence
Every one of our timber frame systems are part of a joined-up process that ensures quality, compliance, and control at every stage.
We work with you from the earliest design stages through to installation and project completion, giving you one expert partner for your entire timber frame build.
Our all-inclusive service provides:
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Accredited products certified by NHBC Accepts, BBA, BOPAS+, and STA Gold Standard
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Technical design and engineering support to ensure compliance with building regulations and Future Homes Standard
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Qualified installation teams providing full installation and fitting
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Local construction management for safe, efficient delivery
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Training and skills development through our BOOST and GRASSP programmes
From closed panel timber frame systems like Sigma® II to open panel solutions, everything is engineered and supported to deliver measurable value.
Technical expertise that delivers results
Our in-house design and engineering teams are specialists in Modern Methods of Construction (MMC) and offsite manufacture.
We work collaboratively with architects, developers, and contractors to:
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Optimise designs for structural performance and energy efficiency
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Provide U-value, Psi-value, and condensation analysis
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Ensure compliance with building regulations, Section 6, Part L, and Future Homes Standard
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Integrate BIM models and digital design data for smooth coordination
This technical depth gives you confidence that your timber frame construction will meet performance standards, sustainability goals, and programme deadlines — every time.
Accredited products you can trust
When you choose Donaldson Timber Systems, you choose proven systems backed by independent testing and certification.
Our Sigma® II closed panel timber frame and open panel timber frame systems are certified by:
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NHBC Accepts – approved for use under NHBC Buildmark warranty.
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BBA – independently tested for strength, thermal performance, and durability.
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BOPAS+ – accredited for long-term structural integrity and 60-year design life.
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STA Gold Standard – verifying manufacturing quality and safety standards
These accreditations mean our systems are fully recognised by lenders, insurers, and warranty providers, giving housebuilders, contractors and affordable housing providers complete peace of mind.
Qualified installation teams and local construction management
Each of our build systems are installed by qualified site installation teams and managed by our Contracts Managers and Supervisors who understand your region, your site, and your programme.
This localised approach ensures:
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Seamless coordination between factory and site
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Faster build programmes with reduced labour dependency
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Safer working environments and controlled quality
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Reliable delivery of low-carbon, net-zero ready homes
With fewer subcontractors and clearer accountability, you benefit from consistent workmanship, predictable outcomes, and easier project management.
Training, skills, and continuous improvement
Our commitment to value extends to our people and yours.
Through our timber frame training, and our partnership with GRASSP, the online Construction Training Hub, we’re helping raise standards and ensure our customers realise the true benefits of timber frame with well trained and supported teams that are competent and confident in the design, cost and build of timber frame projects.
Our training focuses on:
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Timber frame manufacturing and assembly best practice
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MMC and offsite construction methods
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Leadership, safety, and quality standards
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Ongoing skills development for site teams and future leaders
This ensures everyone involved in a project has the skills, confidence, and competence to deliver exceptional results.
Why it matters
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Proven quality and compliance with building regulations
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Optimised performance and reduced design risk
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Reliable, safe, and consistent on-site delivery
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Clear communication, fast problem solving, and dependable coordination
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Skilled people and continual improvement for long-term success
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Supporting Future Homes Standard and net-zero ambitions
Sustainable, low-carbon construction, built in
Sustainability isn’t an add-on, it’s at the core of how we build.
Our offsite manufacturing process reduces waste, improves energy efficiency, and supports Future Homes Standard compliance.
By using structural timber, one of the most renewable building materials available, every Donaldson Timber Systems system locks carbon into the structure of the home, helping our partners meet net zero targets and environmental commitments.
