Abstract
Compressive tests perpendicular to the grain of Cross-Laminated Timber (CLT) were conducted while changing the number of layers, lamina grade composition, loading plate direction against the outer lamina direction, and the loading direction to the specimen. This was done to clarify the compressive strength properties perpendicular to the grain under each conditions, and a simplified manner of evaluating the compressive strength properties perpendicular to the grain was proposed. Following compressive tests perpendicular to the grain, it was found that the factors dictating the compressive strength properties perpendicular to the grain were loading plate direction against outer lamina direction and loading direction, while the number of layers and lamina grade composition had less impact. The stress at the CLT proportional limit was estimated using the stress at the proportional limit of lamina, and the estimated and measured values corresponded.