That stain should be about $22. per gallon. Check your paint stores. I think the brand Sundance uses is SuperDeck. If you want REAL quality stain try Sikken's. You will only find Sikkens at a quality paint supply store (not Home Depot or such). Speaking of: stay away from the Home Depot brands like Thompson's, or Behrs. Find SuperDeck, Sikken's, TWP - Total Wood Protection, or something similar. If your looking for the "grey" color it shouldn't be too difficult. Oh, I'm a painting contractor by trade.