An engineered wood structural system made of engineered wood components, said engineered wood components including: • multiple pillars parallel to each other, each pillar including beam seats ; • multiple beams connected to said pillars through the beam seats , each connection defining a node, each beam including an upper horizontal slat , a lower horizontal slat and at least one central vertical slat placed between, and attached to, the upper and lower horizontal slats (21 and 22); • slab members supported on said beams defining overlapped structure floors on different floor level; characterized in that • each of said multiple pillars comprises multiple nodes on different vertical positions, corresponding to different floor levels, and is made up of multiple vertical struts , which are continuous along the entire longitude of the pillar , separated to each other in a horizontal direction and connected to each other through pillar spacers comprised between said vertical structs , • each of said multiple beams has a portion comprised between at least two facing vertical struts and vertically supported on one of said beam seats comprised between said two facing vertical struts ; • each vertical strut is made up of multiple successive vertical strut segments , made of a vertical sheet of engineered wood, aligned and rigidly connected to each other through a vertical connector , made of a vertical sheet of engineered wood, adhered to a vertical pillar surfaces of adjacent successive vertical strut segments or through complementary recessed staggered steps defined on adjacent end portion of two successive vertical strut segments overlapped and adhered to each other. • multiple pillars parallel to each other, each pillar including beam seats ; • multiple beams connected to said pillars through the beam seats , each connection defining a node, each beam including an upper horizontal slat , a lower horizontal slat and at least one central vertical slat placed between, and attached to, the upper and lower horizontal slats (21 and 22); • slab members supported on said beams defining overlapped structure floors on different floor level; • each of said multiple pillars comprises multiple nodes on different vertical positions, corresponding to different floor levels, and is made up of multiple vertical struts , which are continuous along the entire longitude of the pillar , separated to each other in a horizontal direction and connected to each other through pillar spacers comprised between said vertical structs , • each of said multiple beams has a portion comprised between at least two facing vertical struts and vertically supported on one of said beam seats comprised between said two facing vertical struts ; • each vertical strut is made up of multiple successive vertical strut segments , made of a vertical sheet of engineered wood, aligned and rigidly connected to each other through a vertical connector , made of a vertical sheet of engineered wood, adhered to a vertical pillar surfaces of adjacent successive vertical strut segments or through complementary recessed staggered steps defined on adjacent end portion of two successive vertical strut segments overlapped and adhered to each other. <EOS>