This 3D model was originally created with Sketchup 8 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 SELECT A COMMON TRUSS OR GABLE FROM THIS LIBRARY OF INDIVIDUAL 2x4 WOOD ROOF TRUSSES 3/12, 4/12, 5/12, 6/12, 7/12 AND 8/12 SLOPE, 14' THRU 40' SPANS, BY 2' INCREMENTS (EACH TRUSS DONE AS A GROUP - CAN BE SELECTED AND PLACED INTO YOUR MODEL...)