Entrance points also get protection with our flat top pet barrier panel gate. 100% galvanized inside and out and powder coated a high-gloss black, this 5’10”x4’ panel gives you peace of mind. It features a flat top 16gauge 1” rail with ten (10) 18gauge 1/2” pickets on top and twenty-one (21) on the bottom. 3-7/8” between top pickets; 1-5/8” between bottom pickets.