8x12 is quite big. Mine was 5x12 and holds 4 hunters nicely. I used treated 2x4's for the base frame, and regular 2x2's for the sides and roof. The walls and roof are covered with cheap 1/8 wood underlayment. All sections were secured together with galvanized lag screws. I then waterproofed/painted the whole blind with a 5 gal deck paint that was in the returns/ reduced price section at Home Depot. It is super thick and has sand in it, and looks very natural alone. I then secured chicken wire on the outside and attached fast grass. Total damage was about $350.