Our History

Our History

Donaldson Timber Engineering Ltd (DTE) is the UK's largest and longest established manufacturer of structural timber components, with ten branches across the UK and over 30 years of experience.

DTE supplies a full range of engineered timber products, including roof trusses, open web joists, site-ready I-joists and panels. As a family owned and run business, DTE has strong traditional and family values. We distribute nationally, providing a local service; and we pride ourselves on providing only the best quality and service.

We pride ourselves on our ability to work with a customer from start to finish, delivering expert customer service and quality of product every time.


"Fleming Homes works near on exclusively with Donaldson Timber Engineering for timber trusses and engineered joist products. This is down to the quality products received, excellent service and reliable remedial support. DTE and its staff are key members of our design team."

Hayden Martin, Operations Director at Fleming Homes

Building opportunities for everyone  

 Our people are our most valuable asset, so it makes sense to make sure that not only will they benefit from working with us, but that the people they care for will too. We want to be a place where people thrive, where they realise their ambitions and potential, in an environment that’s empowering, nurturing and progressive. It’s about taking things further and making the most of opportunities to do and be better – and making sure that everyone benefits from our positive actions.