Floors
Roofs
Walls
Fixings
TIMBER ENGINEERING CONNECTORS
Cullen Connectors
Innovation in every connection. Trust in every build.
Cullen Timber Connectors, established in 1977, has long been recognised for its commitment to innovation, uncompromising quality, and exceptional customer service within the offsite Construction sector in the UK.
25m+
PARTS PRODUCED ANNUALLY
40+
patents & trademarks
25m+
parts sold annually
100+
partnerships across uk & ireland
16
in house production lines
80+
staff across UK & ireland
About Cullen
Our Story
Since joining ITW Construction in 2008, Cullen has benefited significantly from access to the global expertise, resources, and operational excellence of a world-renowned organisation, This partnership has enabled Cullen to accelerate its growth, expand its capabilities and further advance its innovation leadership.
As a leading designer and manufacturer of metalwork engineered connectors across the UK & Ireland, Cullen is trusted throughout the industry for its consistent performance, product reliability, and full compliance with EN 792-13 and Eurocode 5 standards.
Our Approach to Innovation
Innovation at Cullen begins on site. By adopting a customer‑backed approach to research and development, we ensure our product portfolio directly reflects the evolving needs of our customers and the wider construction sector.
With a strong focus on continuous improvement, our solutions address real‑world challenges and position us at the forefront of technological and industry advancements.
Production Excellence
Our state‑of‑the‑art research and production facility in Glenrothes, Scotland, is equipped with advanced testing and prototyping capabilities - including a test rig, timber conditioning chamber, and computer‑controlled turret press.
Cullen continues to lead in technology, research, and development by collaborating closely across the value chain. We work directly with construction specialists to deliver future‑ready, compliant, and innovative solutions that enhance productivity and address critical industry challenges.
Empowering the builders of the future
Cullen customers benefit from the support of an experienced and highly qualified technical team. With nearly 40 years of industry expertise, our specialists provide guidance across all aspects of timber engineering. Our professionals actively contribute to key industry bodies—including the STA, TRA, and TRADA — helping shape standards and develop solutions for emerging sector challenges.
Our comprehensive range of timber engineering solutions includes connectors and hangers for:
Explore the Cullen Technical Guide
Access the technical guide for detailed product information and additional resources.
CONSTRUCTION EXPERTISE