Can you put stucco on plywood?

No, stucco should not be applied directly to plywood as it requires a proper substrate for support and durability. Instead, a moisture-resistant barrier, such as building paper or a weather-resistant membrane, should be installed over the plywood, followed by metal lath, which provides a suitable surface for the stucco to adhere to. This ensures that the stucco has the structural integrity and moisture protection it needs to prevent damage.