Regarding to the in-plane shear strength of CLT the authors proposed an equation for the in-plane shear strength in the width direction of CLT beams proposed by M. Flaig et al., and verified the validity of the proposed equation for Japanese cedar.On the other hand it has not been confirmed whether the proposed equation is applicable to other wood species. In the past research the in-plane shear strength of CLT tested by one-way monotonic loading with no vertical load was only verified.The aim of this study is to …