This report covers structural testing of component panels and a full module of WikiHouse. This report covers the racking testing undertaken on 4 No. 5.4m wide x 3.1m high timber panels; 2 No. solid construction and 2 No. with apertures, as well as horizontal loading of 1 No. 5.3m x 5.3m x 3.1m high module (all dimensions have been advised by the client and were not verified by BRE). Open Systems Lab arranged for delivery and install of the first test specimen at BRE’s Watford site on 1st June 2021. The setup and testing were undertaken between 26th May – 16th June 2021. This report provides details of the testing carried out and the results obtained.