Your most reliable
timber frame partner
At Donaldson Timber Systems, we offer a complete range of timber frame solutions designed to meet the needs of modern housebuilding, from open panel systems and pre-insulated panels to advanced closed panel timber frame systems.
Every product we manufacture is built on more than 50 years of innovation and backed by the strength and heritage of the Donaldson Group. Each system is precision-engineered offsite in our automated manufacturing facilities, delivering quality, consistency, and speed that traditional construction simply can’t match.
Our timber frame systems are fully accredited and independently certified including NHBC Accepts, BBA, BOPAS+, and STA Gold Standard, giving our customers complete confidence in performance, compliance, and long-term durability.
Whether you’re building affordable housing, private developments, or large-scale residential projects, our systems deliver:
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Proven compliance with building regulations and Future Homes Standard requirements
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Exceptional thermal and airtightness performance, supporting low-carbon and net-zero goals
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Flexibility and adaptability to suit a wide range of architectural designs and site conditions
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Certified quality through ISO 9001, 14001, and 45001 management systems
From cost-effective open panel systems to the high-performance Sigma® II closed panel timber frame, our products provide precision, reliability, and value, helping you build smarter, safer, and faster.
Product certification and performance standards
Confidence starts with quality you can trust. All Donaldson Timber Systems products are independently tested and certified by leading bodies including NHBC Accepts, BOPAS+, BBA, and STA Gold. Our accreditations prove compliance, durability, and performance, giving you total assurance in every timber frame system we design, manufacture, and deliver.
Open panel systems
Our open panel timber frame systems offer a flexible, cost-effective solution for high-volume housebuilding. Designed for speed, accuracy and quality, they provide a proven route to offsite construction efficiency. Manufactured in controlled factory conditions, each panel delivers reliable performance and faster build times.
Pre-insulated systems
Pre-insulated timber panels combine the benefits of offsite manufacture with exceptional thermal efficiency. Factory-fitted insulation ensures consistent quality, reduced waste and faster site progress. These systems help meet future homes and low-carbon targets while keeping build costs under control.
Closed panel systems
Our closed panel timber frame systems, including the Sigma® II platform, deliver high performance, precision and speed. With insulation and service zones factory-installed, they reduce site labour, improve airtightness and support modern methods of construction. Certified by NHBC, BOPAS+ and BBA, they’re built for quality and long-term confidence.
