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Lockerbie Sawmill, Lockerbie

Location: Lockerbie, Scotland, UK

Client: James Jones & Sons Ltd


Architect: Konishi Gaffney Architects

Role: Structural Engineers*

James Jones & Sons Ltd are the UK’s largest sawmiller and their flagship mill at Lockerbie is used as a showcase for modern sawmilling. 


The building takes the form of a single storey office wing and a two-storey volume housing the reception, meeting rooms and conference space above. The 1st floor is raised to give panoramic views across the timberyard. A glass link building connects to the old office.


The structure acts as a demonstration project, almost entirely erected from James Jones & Sons’ products to minimise steelwork and maximise timber. Glulam beams and JJI structural I-beams were used throughout the building in the walls, floors and roof and an unprocessed tree trunk provides support to the backbone of the building.


The walls use an innovative double-leafed, offset structure, using proprietary timber JJI joists, to minimise cold bridges. These extra thick walls, 430mm deep, allowed sufficient depth to use environmentally friendly insulation.


Photo credit: dapple photography

* completed whilst at a previous company

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