Effects of the width and lay-up of sugi cross-laminated timber (CLT) on its dynamic and static elastic moduli, and tensile strength

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Summary of CLT used in this study

Type of testing	Abbreviated name	Lay-up	Direction of outer layers	Size (mm) depth × width × length	Number of test specimens
Different widths	5-5-Ma-150	5-layer-5-ply	Major	150 × 150 × 6000	6
	5-5-Ma-300			150 × 300 × 6000	6
	5-5-Ma-600			150 × 600 × 6000	6
Different lay-ups	3-3-Ma	3-layer-3-ply	Major	90 × 300 × 6000	6
	3-3-Mi	3-layer-3-ply	Minor	90 × 300 × 6000	6
	3-4-Ma	3-layer-4-ply	Major	120 × 300 × 6000	6
	3-4-Mi	3-layer-4-ply	Minor	120 × 300 × 6000	6
	5-5-Ma	5-layer-5-ply	Major	150 × 300 × 6000	6
	5-5-Mi	5-layer-5-ply	Minor	150 × 300 × 6000	6

“Major” corresponds to the general direction of the grain, wherein the outer layer is parallel to the length of the CLT. On the other hand, “Minor” indicates the general direction of the grain, wherein the outer layer is perpendicular to the length of the CLT. For example, 3-layer-4-ply in the major direction and 3-layer-4-ply in the minor direction, abbreviated as 3-4-Ma and 3-4-Mi, respectively