Summit board is a classic 2x6 board that has been reshaped with surface treatments that shed water more effectively. Boards feature a crowned surface on one side, beveled edges, and drip lines on the bottom. Each board runs through the planer at a slower speed for a more refined finish. Cost: $1.75 to $1.99 per board foot. California Redwood Co. 866-797-7474. www.californiaredwoodco.com.