The Gold Premium Materials Package incorporates the following upgrades to the Silver Complete Materials Package: Low-E, insulated wood windows and patio doors are upgraded to Andersen Series 400 Vinyl Clad units4×6 porch posts are upgraded to 8 in. -14 in. diameter Handcrafted Log porch posts. Soffits and porch ceilings are upgraded from 3/8 in. rough sawn plywood to 1X6 White Pine Tongue & Groove V-Notch paneling. Gable end overhangs are extended from 12 in. to 24 in. Final Blueprints sealed by an engineer licensed for your state (if needed)