major drawbacks of wood restrict its wider applications. [5] One of them is the intrinsic high hygroscopicity, which brings numerous detrimental effects such as mildew, wood deformation, and cracking. [6] The hydrophilicity inevitably leads to water absorption and strength loss. Construction of hydrophobic surfaces on wood substrate could effectively hinder the invasion of water, thereby restricting dimensional instability and fungal growth. [7] In addition, hydrophobic surfaces hold great potential in anti-icing, self-cleaning, frost-resistance, anti-contamination, and oil−water separation. [8] In this context, tremendous efforts have been dedicated to develop hydrophobic or superhydrophobic coatings on wood surface. [9] The methods of sol−gel, chemical vapor deposition, spray-coating, and soft lithography have been proven effectively to realize surface wettability transition. [5b,10] These modification routes focus on depositing materials (e.g., organosilane and fluorosilane) with low surface