With a noncombustible (per ASTM E136) and dimensionally stable gypsum core, ToughRock® Fireguard X® Stretch 54® Gypsum Board is specifically designed for walls to align with 9′ (2743 mm) ceiling height where a designated fire-resistant rating is needed.1 The use of 54” (1372 mm) wide gypsum board in this application saves labor and time by eliminating the need to use an extra board to fill the gap left from 4′ (1220 mm) wide board. 5/8″ (15.9 mm) ToughRock Fireguard X Stretch 54 Gypsum Board is UL-classified Type X, and has a flame-spread rating of 15 and smoke developed 0 when tested in accordance with ASTM E84.
1Consult UL Fire Resistance Directory for assembly information.d
*FIRE SAFETY CAUTION – Passing a fire test in a controlled laboratory setting and/or certifying or labeling a product as having a one-hour, two-hour, or any other fire resistance or protection rating and, therefore, as acceptable for use in certain fire rated assemblies/systems, does not mean that either a particular assembly/system incorporating the product, or any given piece of the product itself, will necessarily provide one-hour fire resistance, two-hour fire resistance, or any other specified fire resistance or protection in an actual fire. In the event of an actual fire, you should immediately take any and all actions necessary for your safety and the safety of others without regard for any fire rating of any product or assembly/system. For additional information concerning fire ratings and fire safety, visit our Product Fire, Safety and Use Information page.
Thickness | nominal inches: 5/8″ (15.9 mm) ± 1/64″ (0.4 mm) |
Width | nominal: 54″ (1372 mm) ± 3/32″ (2.4 mm) |
Length | standard: 8′ (2440 mm) to 14′ (4270 mm) ± 1/4″ (6.4 mm) |
Weight | lbs./sq. ft., nominal (kg/m²): 2.2 (10.7)1 |
R Value | ft2•°F•hr/BTU (m2•K/W): 0.56 est. (0.10)2 |
Humidified Deflection | max: 5/8″ (16 mm)3 |
1 Represents approximate weight for design and shipping purposes. Actual weight may vary depending on manufacturing location and other factors. 2 Per Gypsum Association document GA-235. 3 Specified minimum values are as defined in ASTM C1396.
Certifications may vary by production location, please contact local representative for more information.
Consumer Product Safety Act (CPSA) – For CPSA General Certificate of Conformity, please click here.