Composite structural member 2

A timber structural member comprising:

• a first timber round having a first cooperating surface extending longitudinally along the length thereof,
• a second timber round having a second and a third cooperating surfaces extending longitudinally along the length thereof, and
• a third timber round having a fourth cooperating surface extending longitudinally along the length thereof wherein,
• the first cooperating surface is shaped to cooperate with the second cooperating surface, and the third cooperating surface is shaped to cooperate with the fourth cooperating surface,
• the first, second and third timber rounds are secured together to form a structurally integral unit in which the first cooperating surface is in contact with the second cooperating surface, and the third cooperating surface is in contact with the fourth cooperating surface, and the first, second and third timber rounds are substantially parallel to each other, and wherein
• the first, second and third timber rounds are secured to each other by a plurality of fasteners spaced along the length of the member, the plurality of fasteners comprising fasteners provided at both acute and obtuse angles from a longitudinal axis of the structural member, the fasteners extending through the first, second and third timber rounds.