Fire Rated Drywall Thickness

This thicker drywall is often called fire resistant drywall.

Fire rated drywall thickness.

Type c fire rated drywall has more glass fiber reinforcement and other ingredients in the gypsum core that makes its fire resistive properties superior to type x. Type x has a denser core and contains glass fibers that keep it from crumbling in the heat. 203 mm limestone aggregate concrete masonry wall with a maximum control joint width of in. It makes a great choice for ceiling applications because it helps to prevent sagging over time.

13 mm a 1 in. Thickness and composition. The 5 8 inch fire code drywall called type x increases a wall s fire rating to a minimum of 1 hour from the 30 minute rating for standard inch drywall. What is the difference between one hour fire rated drywall and three hour fire rated drywall and where would each one be used.

Finally the gypsum and fiberglass are packed tighter and denser than with regular. Or 3 5 8 inch 610 mm steel studs spaced 24 o c. Truck tool rental. Type c fire rated drywall sometimes referred to as improved.

Durock is manufactured in sheets with a thickness of anywhere from 1 4 to 5 8 inch a width of 32 36 or 38 inches and a length between 4 and 10 feet. 51 mm thickness can be used. Fire resistant 7 moisture resistant 4 mold resistant 1 no additional features. Thicker drywall may be required by code for any wall or ceiling covered with a texture or skim coat where studs or joists are spaced 24 inches on center rather than 16 inches.

For example for an 8 in. 25 mm thickness measured perpendicular to the face of the wall of ceramic fiber in the joint can be used in walls with fire resistance ratings up to 3 hours while a 2 in. It is 13 pounds lighter than other varieties for the same size and thickness. Drywall typically comes in 1 4 inch 3 8 inch and 1 2 inch thicknesses.

Common walls between residential living spaces and attached garages for example require a fire resistant. Drywall product thickness in 1 2 in. The exact fire rating of durock is dependent on the other materials used during construction but a panel 1 4 or 1 2 inch thick typically provides an additional hour of fire protection. The thickest of all the types of drywall 5 8 inch drywall is often fire resistant drywall.

Has a minimum fire rating for the assembly of 1 hour which is a typical requirement for many building codes. Type x gypsum board is wallboard to which non combustible fibers have been added. Type x drywall is 5 8 inches thick. And it s not just thickness that makes the difference.

Get free shipping on qualified fire resistant drywall sheets or buy online pick up in store today in the building materials department. According to the book commercial drafting and detailing a typical one hour fire rated wall consists of 2x4 studs spaced 16 inches from the center of one stud to the center of the next covered by 5 8 inch type x gypsum board. In addition to the usual gypsum found in regular drywall fire rated drywall contains glass fibers to form a super tough core.