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.

Fire rated drywall thickness.

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. Or 3 5 8 inch 610 mm steel studs spaced 24 o c. 203 mm limestone aggregate concrete masonry wall with a maximum control joint width of in. Has a minimum fire rating for the assembly of 1 hour which is a typical requirement for many building codes.

And it s not just thickness that makes the difference. Fire resistant 7 moisture resistant 4 mold resistant 1 no additional features. 13 mm a 1 in. Drywall typically comes in 1 4 inch 3 8 inch and 1 2 inch thicknesses.

This thicker drywall is often called fire resistant drywall. 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. Type x drywall is 5 8 inches thick. The thickest of all the types of drywall 5 8 inch drywall is often fire resistant drywall.

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. It is 13 pounds lighter than other varieties for the same size and thickness. Type c fire rated drywall sometimes referred to as improved. Get free shipping on qualified fire resistant drywall sheets or buy online pick up in store today in the building materials department.

In addition to the usual gypsum found in regular drywall fire rated drywall contains glass fibers to form a super tough core. A 60 minute fire rating is a measure of the amount. For the pro. 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.

Drywall product thickness in 1 2 in. Truck tool rental. Thickness and composition. Common walls between residential living spaces and attached garages for example require a fire resistant.

What is the difference between one hour fire rated drywall and three hour fire rated drywall and where would each one be used. 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. Type x fire rated gypsum drywall that is 5 8 inch 15 9mm thick and installed on each side of nominal 2 inch x 4 inch 38x89mm wood studs spaced 16 inch 400mm o c. It makes a great choice for ceiling applications because it helps to prevent sagging over time.

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. Type x gypsum board is wallboard to which non combustible fibers have been added. For example for an 8 in.