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Drywall can be toxic to the environment and to humans in some cases. As drywall breaks down in a landfill and comes in contact with other organic chemicals, it can create hydrogen sulfide gas or leach into the groundwater. Additionally, the CDC recommends methods for controlling the inhalation of drywall dust when handled. While the common ingredients of drywall—gypsum, silica, and mica—are naturally occurring, they can cause irritation in some humans.

Drywalling a garage is a smart decision if you want to protect your garage from fires, moisture damage, and exterior noise. Most garages have flammable supplies that could result in serious damage in the off chance of an accident. Drywall is fire resistant, helping to prevent fires from spreading. Not to mention, drywall can improve the appearance of a dingy, old garage.

Both plaster and drywall are durable wall finishes, but they differ significantly in installation, cost, performance, and aesthetics.

Installation & Cost: Drywall installation is faster and more affordable, typically costing $1.50 to $3 per square foot. It uses premade sheets, making it a more accessible DIY project. Plastering is a labor-intensive craft that requires specialized skills, pushing costs to $2 to $10 per square foot. It involves applying a wet paste over a lath framework.

Durability & Performance: Plaster is generally more durable, longer-lasting, and provides superior soundproofing. It is also a better insulator, which can help reduce energy costs. Drywall is easier to remove for future renovations.

Aesthetics: Drywall provides a smooth, uniform surface ready for paint or texture. Plaster offers a high-end, naturally textured look that can hide imperfections and is often preferred for achieving a classic or historic aesthetic.

Which is better? The choice depends on your priorities. Drywall is ideal for those prioritizing a lower upfront cost, faster installation, and DIY potential. Plaster is the better option for a higher-end project where durability, soundproofing, and a unique, premium finish are more important than the initial cost.

When sanding drywall mud, you’re going to create a very fine dust that may contain silica. Silica dust contains crystalline silica, which can cause long-term illnesses for people who inhale it in significant quantities. Wear a mask while sanding drywall. Then dampen a drywall sponge to wipe the dust off the drywall, helping to reduce the amount of dust that may become airborne.