A load bearing structure including a first fixed net layer, a second fixed net layer and a non-linear structure in between. The first fixed net layer may include a first layer of flexible fabric and a fixing material that fixes the shape of the first layer of flexible fabric. The second fixed net layer may include a second layer of flexible fabric and a fixing material that fixes the shape of the second layer of flexible fabric. The non-linear reinforcing structure may be in communication with the first and second fixed net layers and may be configured to share with the first and second fixed net layers a load applied to the load bearing structure.