Abstract：
WikiHouse is an open source and non-profithouse making solution center, which allows one to download free designs, print CNC milled components of plywood and then assemble the house on-site with little requirement for professional skills or training. Some of the components need to be extended by a kind of semi-rigid joint due to the limit of their length. The dimension optimization in terms of the width, depth and angle of the slot as well as a design of two-story WikiHouse will be introduced here in order to inform the design check of the horizontal stability of the structure used in WikiHouse.
