What is the difference between sheetrock and drywall?

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Answered

People sometimes use the terms “sheetrock” and “drywall” interchangeably, but they are not exactly the same. Drywall is the industry term for prefabricated sheets of wall, while Sheetrock is the brand name of a type of drywall. Depending on what room is being built, your drywall installation pro will select different thicknesses or grades of drywall. Standard residential drywall is ½-inch thick. Garage walls adjacent to a living space are typically ⅝-inch thick and serve as a firewall. For a garage ceiling, most contractors will use firewall-grade drywall materials to keep your home as safe as possible.

Different types of drywall can be color-coded to indicate their purpose. Purple or green drywall boards are often mold-resistant (MR) and are applied where moisture tends to accumulate, such as in bathrooms and basements or behind tile backsplashes at sinks. These mold-resistant sheets have a fiberglass instead of a paper facing finish to prevent water absorption. Regular drywall is gray or white. The drywall industry is constantly adapting with technology to provide safer and more targeted materials. You can even install soundproofing drywall to help prevent noise transfer through rooms.