MR Grade Plywood 9mm

"MR grade plywood" refers to "Moisture Resistant grade plywood," which is designed to withstand moderate levels of moisture and humidity. The term "MR grade" indicates that the plywood has been treated with a moisture-resistant chemical during its manufacturing process.
In your case, 9mm refers to the thickness of the plywood. Plywood is available in various thicknesses, and 9mm is a standard thickness option. It is considered a medium thickness and is commonly used for a wide range of applications, including interior construction, furniture making, cabinetry, and general woodworking.
To acquire MR grade plywood in 9mm thickness, you can check with local hardware stores, building supply centers, or plywood suppliers in your area. They should be able to provide you with the desired plywood thickness and ensure that it meets the necessary moisture-resistant specifications.