MR Grade Plywood 12mm

"MR grade plywood" refers to "Moisture Resistant grade plywood," which is treated to withstand moderate levels of moisture and humidity. The term "MR grade" indicates that the plywood has been manufactured with a moisture-resistant chemical treatment.
Regarding the thickness you mentioned, 12mm, it is a standard thickness for plywood. Plywood comes in various thicknesses, and 12mm is a commonly used thickness option. It is considered a medium thickness and is suitable for a wide range of applications, including furniture making, interior construction, cabinetry, and general woodworking projects.
To acquire MR grade plywood in 12mm 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.