Final answer:
The minimum recommended spacing between deck boards is 1/8 inch, which allows for wood movement, drainage, and drying.
Step-by-step explanation:
The minimum spacing of deck boards is 1/8 inch. By spacing the boards, it allows room for the wood to expand and contract due to changes in humidity and temperature. This prevents the boards from warping or buckling over time.
When installing deck boards, it's important to consider wood movement, drainage, and drying. The minimum spacing between deck boards is generally recommended to be 1/8 inch (option a). This spacing allows for slight expansion and contraction of the wood due to changes in humidity and temperature as well as proper water drainage and air circulation to promote drying. It's important to follow this guidance to prevent potential issues such as buckling or rotting of the wood over time.