Open panel systems
Experience. Precision. Performance you can trust.
Alpha Open Panel timber frame
Flexible, efficient, and proven for modern housebuilding.
The Alpha system from Donaldson Timber Systems is our open panel timber frame solution , designed to provide housebuilders and contractors with a cost-effective, reliable, and flexible structural system for new build homes.
Engineered with the same precision, quality, and expertise behind all our products, Alpha offers a lightweight, robust timber frame that’s easy to handle, quick to assemble, and ideal for high-volume or standardised housing developments.
What Is Alpha?
Alpha is an open panel timber frame system, meaning the panels are manufactured offsite to exact dimensions and delivered to site ready for assembly, with insulation and services fitted on site.
Each panel is constructed from engineered structural timber with a durable sheathing board to one side, creating a strong and stable wall or floor system.
This approach allows maximum flexibility for site works and follow-on trades, while still providing the accuracy, speed, and sustainability benefits of offsite manufacture.
Key features:
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Precision-engineered open panel wall, floor, and roof elements.
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Compatible with a range of insulation and cladding systems.
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Lightweight, easy to lift, and ideal for restricted-access sites.
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Factory-made for dimensional accuracy and consistent quality.
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Fully compliant with building regulations and Future Homes Standard requirements.
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NHBC Accepts and STA Gold Standard accredited for quality assurance.
When to choose it
The Alpha system is designed to meet the needs of housebuilders and contractors seeking a balance between performance, flexibility, and cost efficiency.
Alpha offers the most economical entry point into offsite timber frame construction within our range. It is ideal for:
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High-volume housing where repeatable design brings economies of scale.
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Affordable housing projects seeking proven, robust solutions.
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Sites with access or logistics limitations where lightweight construction is beneficial.
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Mixed-tenure developments where different performance levels can be achieved across plots.
By providing a strong, accurate structure for on-site finishing, Alpha helps reduce overall build times while maintaining control over cost and quality.
With the ability to accommodate a wide range of wall make-ups, cladding options, and insulation types, Alpha can be tailored to meet both architectural requirements and energy performance targets.
Benefits of the Alpha open panel system
Flexible design Easily adaptable for different housing types, elevations, and finishes.
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Cost-efficient
Lower material and labour costs compared to traditional build or closed panel systems.
Faster build times
Pre-engineered panels reduce setting out, handling, and on-site construction time.
Lightweight construction
Easier handling and faster installation with less heavy equipment.
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Build quality and accuracy
Factory production ensures dimensional precision and consistent performance.
Sustainability
Renewable structural timber, reduced waste supports low-carbon construction.
Compliance
Meets current and future building regulations and Future Homes Standard targets.
Proven quality and accreditation
Like every one of our systems, Alpha is manufactured to ISO 9001 Quality, ISO 14001 Environmental, and ISO 45001 Health & Safety standards.
It is accredited by NHBC Accepts and recognised by the Structural Timber Association (STA) Gold Standard, demonstrating compliance, reliability, and quality in manufacture.
Combined with over 50 years of timber frame innovation, Alpha gives housebuilders a system they can rely on, proven, accredited, and supported by our expert technical team.
Part of a sustainable future
Using responsibly sourced structural timber, Alpha supports low-carbon construction and helps deliver homes aligned with the Future Homes Standard.
By manufacturing offsite, waste is reduced and productivity is improved, contributing to faster, cleaner, and greener housebuilding.
Alpha by Donaldson Timber Systems – reliable, adaptable, and built for progress.
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