A lot of people ask how much space they need under their deck, or if extra ground clearance is even necessary. At AdvantageLumber.com, we recommend at least 18 inches of open air under the joists. Anything less is risky. But why?
How Much Space Between Deck Boards
The amount of space to leave between deck boards primarily depends on the type of wood or material you’re using for the decking. Generally, the guidelines are as follows: Pressure-Treated Wood For pressure-treated wood, a common spacing is 1/8 to 1/4 inch. This type of wood can shrink as it dries, so the spacing allows …