Donaldson Timber Engineering
40+ years industry excellence

Engineering
the future
of timber.

A leading UK manufacturer of roof trusses, engineered joists and spandrel panels. Expert design. Exceptional service. Exacting standards.

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Large timber A-frame roof trusses being lifted upright in the DTE factory
40+
Years engineering timber
10
Regional branches
100%
Sustainably sourced timber
1st
Truss & Joist manufacturer to achieve CCPI-Approved status
The range

Trusses are just the beginning

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DTE joiner positioning truss timbers on the pressing bench01

Engineered system / 01

Roof Trusses

Standard (fink), mono, attic and specialist trusses designed around your plans.

  • Wide range of standard spans
  • Larger & bespoke trusses designed to order
  • Standard, attic & mono variants
  • CCPI Approved
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DTE operative carrying a Posi-Joist across the production hall02

Engineered system / 02

Joists

MiTek Posi-Joist (metal web) and Metsä Wood Finnjoist I-Joist (OSB web) floor systems for domestic and commercial loads.

  • Posi-Joist
  • I-Joist 220 / 240 / 300mm
  • Domestic, apartment & office loads
  • CCPI Approved
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DTE team measuring a timber frame panel on the assembly table03

Engineered system / 03

Panels

Prefabricated panels for gable and party walls, manufactured off-site and supplied as part of a coordinated roof package.

  • Gable panels and spandrel panels
  • Factory manufactured
  • Designed to project requirements
  • Supplied alongside roof trusses
  • CCPI Approved
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Instant pricing

Get an instant quote today

Configure trusses or joists, set your spans and get an indicative price before you pick up the phone.

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DTE operative running timber through a hydraulic press
Watch

Inside our factories

Donaldson Timber Engineering — company film

Donaldson Timber Engineering — manufacturing film

Why DTE

More than a supplier

01

Quality

Leading the way. Setting the standard. Raising the bar.

We never settle for “good” when we can push things further. Our reputation is built on the quality of our products and our service.

02

Experience

Big picture. Big knowledge. Small details.

Over 40 years supplying the UK construction industry, with expert technical advice from an in-house trained design team.

03

Reach

Local knowledge. National reach.

Our regional branch network means we deliver nationally while building the local relationships that projects actually run on.

04

Family

The trusted name in timber engineering.

Part of the Donaldson Group, whose timber heritage stretches back to 1860, with over 40 years' experience in timber engineering.

Long truss assembly line with joinery benches inside a DTE manufacturing hall
DTE operative smiling while nailing a timber component
DTE joiner setting out a timber component in the workshop
Services

From sketch to site

Design & Engineering
Our in-house trained designers turn drawings or sketches into detailed component designs and manufacturing drawings for approval.
Manufacturing
Continuously improved manufacturing processes across our UK sites, with quality control at every stage of the line.
Delivery
Our own fleet delivers across mainland UK, in the sequence you need it, offloaded safely on site.
Customer Support
From enquiry to after-sales, you get a named contact who knows your project, rather than a call-centre queue.
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Talk to a person

A UK-wide branch network. One named team on your project.

01592 715026