Using D-grade plywood for a kitchen is generally not recommended. Plywood is graded based on its appearance and structural qualities, and D-grade plywood is one of the lowest grades available. It typically has more defects and imperfections compared to higher grades.
In a kitchen, where moisture, heat, and frequent use are common, it's essential to have materials that can withstand such conditions. D-grade plywood may not be adequately durable or resistant to moisture and could warp or delaminate over time. It may also have more voids and knots, making it less suitable for critical applications like cabinet construction, where strength and stability are crucial.
For kitchen cabinets or any other kitchen-related projects, it's better to use higher-grade plywood, such as A or B-grade plywood. These grades have fewer defects, smoother surfaces, and better overall quality. They are better suited for cabinetry, furniture, and other applications where aesthetics, strength, and durability matter.
Additionally, it's important to ensure that the plywood is properly finished or sealed to protect it from moisture and spills that are common in kitchen environments. It's best to consult with a professional or an expert in woodworking to select the most suitable plywood grade and finishing techniques for your specific kitchen project.