What's the minimum spacing between "boards"? That is, do they expand like regular deck boards?
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Hello, thank you for your question. The TimberTech AZEK decking options suggest a 1/8"-1/4" gap between boards lengthwise for airflow and drainage. All butt-joints and miter-joints are recommended to be fitted tight with no gap at the time of installation. This decking can expand and contract with temperature change. For more information please visit https://www.timbertech.com/ -AZEK Customer Care Team.
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