A pioneering £1.8m oak gridshell building designed to reflect the undulating South Downs has been completed at the Weald and Downland Open Air Museum, Sussex.

The Building Conservation Centre, which the museum believes could pave the way for commercial gridshell construction, used hundreds of 35m long green oak laths for the structural shell, plus glulam beams and western red cedar for exterior cladding.

The triple domed structure will house the museum’s conservation workshops repairing old timber frame houses, as well as holding courses in timber framing.