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Circle K’s new flagship EV charging station in Sweden
Timber is the focal element of the Circle K new flagship EV charging station in Järna, Sweden – five canopies and several free-standing signature walls are made of glued laminated timber (limträ). Semi-transparent solar panels serve as roof cladding and produce renewable energy on site. ZAZA TIMBER provided structural design, manufacturing and assemby services.
Our services:
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LocationJärna, Sweden
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Year of construction2025
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DimensionsFive canopies, each 5 m high, 8 m wide, 6 m long and 2.5-meter-high signature walls
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Our servicesTimber structural design, glulam manufacturing, assembly
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ClientCircle K
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ArchitectBelatchew Arkitekter
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Built byGeneral contractor: RO-Gruppen AB; Timber structural design, production, assembly of timber structures: ZAZA TIMBER
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DesignZAZA TIMBER
Engineering part of the project
Each canopy is 5 meters high, 8 meters long and 6 meters wide, while the roofing consists of steel cladding and solar panels. 2.5-meter-high signature walls with benches are also made of wood.
At the structural design stage, special attention was paid to the stability of the roof construction consoles under the heavy snow loads, the development of appropriate rigid connections, the drainage of rainwater and the constructive protection of timber structures against adverse environmental conditions. Each canopy roof is designed to withstand a total of 42 tons of snow in worst case scenario.
563 working hours of two engineers were used to design the canopies and signature walls.
Production part of the project
During production, focus was put on the accuracy of manufacturing small, interconnected parts, surface treatment with hydrophobic paint, and pre-assembly, so that assembly on the construction site was simple and fast.
Each of the five canopies is made from 7.57 m3 timber of which 97% is glued laminated timber. This amount of timber has captured about 5500 kg of CO2 (1kg of timber = 1.65 to 1.80 kg CO2). In total, there are 989 timber parts that have captured about 26 000 kg of CO2. For one canopy 12,3 L of wood oil is used to protect timber against sun and precipitation.
Construction part of the project
During the construction the role of ZAZA TIMBER included the installation of steel anchors in concrete foundations, assembly of all timber and structures and steel roof cladding. Certain works such as laying foundations, wiring, installation of charging points and solar panels and signage were performed by other contractors. In total 989 timber parts of all sizes and more than 10 655 screws, dowels and bolts were installed. Assembly time – three weeks.
