What is the difference between Type C drywall and type X?
Type C drywall is known as the more durable version of Type X—there are more glass fibers in this product as well as more vermiculite components, giving it a fire resistance of 2-4 hours. You can find this product at your local drywall and insulation store in 1/2” and 5/8” thickness.
What is Type X plasterboard?
Type X drywall has special core additives that allow it to be used in fire rated designs and usually comes in 5/8” thickness. Type X drywall products will have a UL/ULC Marking printed on the back of each board identifying it as a fire-resistance rated board.
What is the main purpose for Type X or Type C drywall?

The fibers in Type C and Type X gypsum panels reduce the severity of cracks when exposed to flames or heat from a fire, which may increase the amount of time they perform without failure under these types of conditions; however, performance varies for Type X and Type C.
Is Type X drywall stronger?
Type X has good structural properties To make drywall stronger under fire conditions, manufacturers make type-X drywall, which has glass fibers added to its gypsum core.
Is Type C drywall moisture resistant?
M-Bloc® Type C gypsum panels were developed as an improved mold and moisture resistant wallboard with additional properties to enhance the core of this type X wallboard to achieve superior performance when used in specific fire rated assemblies.
Can Type C drywall be used on walls?

CertainTeed Type C Fire Resistant drywall accepts most types of paints, textures and wall covering materials.
Is Firecode drywall mold-resistant?
Sheetrock® Brand Mold Tough® Panels Firecode® X (UL Type SCX) are 5/8 in. (15.9 mm) Type X panels that feature a noncombustible, moisture-resistant gypsum core that is encased in moisture-and mold-resistant, 100% recycled green face and brown back papers.
What type of drywall is used in commercial buildings?
Regular drywall
Regular drywall, often called white board, is the most common type used in ceilings and walls in homes and commercial projects.
What kind of drywall do you use in a shower?
Greenboard Drywall
Greenboard Drywall Definition Cement backer board such as Durock is best used for tile in highly wet applications such as shower stalls, with greenboard and other water-resistant drywall panels kept only to high-humidity areas. Greenboard’s paper facing alone does not inhibit mold growth.
What are 3 different types of drywall?
Drywall comes in four common thicknesses, each offering a specific use and purpose.
- 1/4-Inch Drywall: The thinnest of all the options, 1/4-inch drywall is most commonly used as a skimming material.
- 3/8-Inch Drywall:
- 1/2-Inch Drywall:
- 5/8-Inch Drywall:
What is the minimum thickness of drywall used in commercial walls?
Most municipal building codes require five eighths drywall in commercial settings and depending on the situation, fire rated five eighths may be required. Five eighths drywall is stronger than half inch drywall and makes for stronger walls.
What is the difference between Type C and Type X FIRE-rated panels?
Ever since then, Type C panels have been widely used in ceiling applications, whereas Type X has been used for walls. Up until about 5 years ago, nearly all UL fire-rated floor and ceiling assemblies specify Type C in order to achieve the proper level of fire performance, while Type X panels are most applicable in wall systems.
Is type X or Type C drywall more fire resistant?
Let’s point out one main thing: due to the water composition in gypsum, all drywall types retard the spread of fire to a degree. But type X and type C drywall are both specifically designed to resist fire and thus increase safety. So should you just pick either off the shelf?
What is the difference between Type X and Type 45® fireguards?
Drilling Down the Main Differences: 1. Type X is typically 5/8” thick. There is one exception to this rule, though! We offer ToughRock ® Fireguard 45 ® for use in a UL-classified, 45-minute fire-rated wall assembly!
What is the difference between Type X and Type C glass?
Type C is designed with a higher percentage of glass fibers than Type X, allowing it to be more resistant under fire conditions. The core of Type C also contains a shrinkage-compensating additive called vermiculite, designed to extend the fire-rating even further by expanding in the presence of fire.