To ensure proper drainage and accommodate swelling, wood decking should be spaced how far apart?

The correct spacing for wood decking is 1/8 to 1/4 inch to ensure proper drainage and allow for the natural expansion and contraction of the wood due to moisture changes. This spacing helps to prevent water from collecting on the surface, which can lead to issues like mold, rot, or decay. Adequate space accommodates the swelling of the wood as it absorbs moisture, especially in climates where rainfall is prevalent.

Additionally, this spacing allows for airflow between the boards, promoting drying and reducing the likelihood of trapped moisture, which can further contribute to wood deterioration. Therefore, maintaining a gap of 1/8 to 1/4 inch strikes an optimal balance between allowing drainage and ensuring structural integrity and longevity of the decking material. This understanding is crucial for landscape contractors to execute proper installation practices effectively.