Designing for a Sustainable Future, One Frame at a Time
Welcome to Cullen Timber Design, a family-run, independent design capability for the timber frame industry and building companies based in Hertfordshire. Our team of five, led by Rob Cullen, has grown exponentially since its formation in 2006, utilizing Dietrich's software to design and detail buildings that exceed our clients' expectations.
Our versatility is one of our strengths, offering services that range from managing the design process completely for self-builders to providing consultancy and design services to our corporate clients. We are not limited to a single framing discipline, allowing us to offer options that utilize the most efficient framing techniques. Whether frames are hand-cut using traditional techniques or produced using CNC machinery, Cullen Timber Design can provide the design service to ensure the finished results are outstanding examples of precision timber engineering.
Our multi-disciplinary frame design service encompasses various materials and techniques, including Cross Laminated Timber, Eco Building/Passiv Haus, Glulam Structures, Hybrid Frames, Softwood Framing, Green Oak Frames, SIPs, and Log Cabins. We pride ourselves on our ability to work with clients to create bespoke designs that meet their specific needs and expectations.
Our Team
Our team is comprised of experienced professionals with a passion for timber frame design. Rob Cullen, the founder, has a background in cabinet making and furniture design, and has been instrumental in introducing Dietrich's software to the timber frame industry. Matt Owen, Martin Lockwood, and Jordan Paton Ross bring their expertise in framing systems and attention to detail, while Christa Cullen provides administrative support, ensuring the smooth operation of the company.
Our Philosophy
At Cullen Timber Design, we believe in providing exceptional design services that meet the unique needs of our clients. We are dedicated to staying at the forefront of the timber frame industry, utilizing the latest software and technology to create innovative and sustainable designs. Our commitment to excellence has earned us a reputation as a leader in the industry, and we look forward to continuing to work with clients who share our passion for precision timber engineering.
Summary of Customer Reviews
Customer Satisfaction
Cullen Design has received a positive review from a satisfied customer, Mac, who rated their experience with the company as 5 stars. The customer highlighted that it is always a pleasure to work with Cullen Design and that the owner, Rob, is always available to talk to. They highly recommend the company, especially for those looking to build a timber frame.

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