Thanks to an uphill slope at the rear of the house, the deck surface was only 5 feet high next to the house but closer to 3-1/2 feet on the far end. Building the deck close to the ground helps ...

His low-cost, easy-to-build under deck drainage system ... To provide drainage, the panels should slope toward the outside edge of the deck about 1/4 in. per foot. If the span under your deck ...