New Cedar deck boards. Some of the Thompson's had Mahogany strips on the deck. This model, which was a lower end model, had cedar. I kinda liked the contrast in the wood colors. It really shows up with a few coats of Varnish. These boards were fairly easy to make. They are 2-3/8" wide and 5/16" thick. They have about a 10 degree angle on the lap joint that allow the boards to follow the contour of the deck. The center board has 2 lower joints and every other board has an upper and lower joint. The boards start at the center and move towards the sides. To ensure the boards had a perfectly straight edge, I C-clamped all boards together and ran them through the planer. With perfectly straight edges I ended up with almost no gap between the boards.