Which of the following materials is NOT recommended for drywall in garage applications?

In garage applications, standard gypsum board is not recommended because it lacks moisture resistance and durability compared to other types of drywall. Garages often experience variations in humidity and temperature, and they may be subject to impacts from vehicles and tools.

Type X gypsum board is specifically designed for added fire resistance, making it suitable for areas where fire safety is a concern. Fire-resistant board has similar properties, offering additional protection for garage spaces where potential fire hazards may exist. Green board, with its water-resistant characteristics, is ideal for areas that may experience moisture, although it is primarily intended for use in locations like bathrooms rather than garages.

In contrast, standard gypsum board does not offer any of these specialized features, which is why it is not the ideal choice for garage applications. The other options provide beneficial attributes that make them more suitable for the conditions typically found in garages.