This hinge type trusses is 5ft in height. this is needed to make the long vertical span to be in a vertical position. without this in a long span of 10 to 20 to 30ft, we cant put the trusses in a vertical position
This hinge type trusses is 5ft in height. this is needed to make the long vertical span to be in a vertical position. without this in a long span of 10 to 20 to 30ft, we cant put the trusses in a vertical position