FPInnovations has undertaken a multi-disciplinary project on determining the structural properties of a typical CLT construction. One of the important parts of the project is quantifying the seismic resistance of structures with CLT panels. In this paper, results from a series of quasi-static monotonic and cyclic tests on CLT wall panels are presented and discussed. CLT wall panels with various configurations and connection details were tested. Wall configurations include single panels without openings with three different aspect ratios, panels with openings, as well as multi-panel walls with step joints and fasteners between them. Connections for securing the walls to the foundation include off-the-shelf steel brackets with annular ring nails, spiral nails, and screws, a combination of steel brackets and hold-downs, and custom made brackets with timber rivets. In addition, results from two storey configurations that include two walls and a CLT slab in between are presented and discussed. Finally, some recommendations for the force modification factors (R-factors) for seismic design of CLT structures according to National Building Code of Canada are made.