
Energy efficient frames
Design + Detailing

We can:
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work within an existing set of design and detailing principles
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support a manufacturer in developing new protocols that respond to its requirements and manufacturing capability
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work with either engineered I beams (Steico, James Jones, Masonite et al) or a 'Larsson Truss' system
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create cost efficient designs that offer our clients the best value in terms of materials and process
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manage hybrid solutions that combine glulam beams, structural steel and green oak elements
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design closed panels for manufacture, including service cavities, cable ducting and pipework
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detail open or closed floor and roof cassettes
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supply lists of all metal fixtures that are required for frame erection
For the last twenty years, Cullen Timber Design has been involved with detailing timber frames that facilitate the creation of energy efficient buildings. We have been at the forefront of this development, working for many of the pioneers within this field. As a result of the relationships we have built up, we have gained huge experience of minimising thermal bridging and ensuring air tightness in homes and civic buildings. We have gained a reputation for handling very unusual and geometrically complex designs involving curved structures and warped roof surfaces.
We can:
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liaise with the full design team to help ensure a smoothly run project
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relieve the in-house project management team of some of the day-to-day management if required
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work with both project and connection engineers to deliver considered, viable and cost-effective solutions

Design management

Pippin Barn
A geometrically challenging and complex I beam and softwood frame.

Yew Tree Lakes
We can liaise with roof truss manufacturers and metal web joist suppliers where required
support a manufacturer in developing new protocols that respond to its vision and its

Headlands
We can liaise with roof truss manufacturers and metal web joist suppliers where required
support a manufacturer in developing new protocols that respond to its vision and its

Parkfield
We can liaise with roof truss manufacturers and metal web joist suppliers where required
support a manufacturer in developing new protocols that respond to its vision and its