Fire Door Casing Thickness

The door panel and frame are both made from galvanneal steel to secure and protect your home or building.

Fire door casing thickness.

Our door casings are constructed from premium quality softwood and are certified by certifire to withstand fire and fumes for up to 30 minutes. Many trim designs begin with door casing. The most widely used door casing is 2 1 4 inches in width but can range up to 3 inches. Casings are wooden frames used to hang your internal doors.

The set comprises an 1800mm 6 wide pair of doors and a frame that will accomodate the doors plus 1 or 2 fixed sidelights of nominal width 450mm or 600mm available separately. Fire doors help to prevent the spread of flames and smoke for up to 30 or 60 minutes in the event of a fire. Our casings are available in a range of sizes and are made from fsc certified timber so you are making the right choice for the environment and your home. They come with a timber stop already in place which is used to prevent any swing through helping to save time on fitting one separately.

When fitted correctly this type of fireproof equipment provide vital protection to anyone inside a building giving time to either get to safety or to be rescued. Trenched casings have grooves cut into them so that they fit together quickly and easily for a smooth installation. And can be used with new masonry and drywall construction when the wall is being built. The frame is compatible with walls that have a thickness of 4 7 8 in.

Wall thickness 3 3 4 95 25 mm min. 30 minute fire doors frames or linings can be made of softwood with a minimum density of 450 kg m. Standard interior door jamb thickness on pre hung doors is 4 9 16 inches. Door frames should be purchased from the door manufacture or from a company licensed to manufacture them or via a bwf approved fire door centre.

Wall thickness there are no restrictions on casing sizes intumescent caulking 5 5 16 135 mm wall thickness use intumescent caulking on all voids between frame and wood or metal studs there are no restrictions on casing sizes. The door jamb is the frame that installs in the wall and supports the door via hinges. Ensure your fire rated door maintains its integrity by fitting our untrenched fire rated door casings. These casings are ready for painting or staining to suit your chosen style of door.

With a selection of sizes and a fire rated version it is easy to find. The thickness is typically 1 2 inch but can range up to 3 4 inch thick for a more substantial casing or more detailed profile. Wall thickness 1 1 2 38 1 mm 3 3 4 95 25 mm min. The doors come factory glazed with high performance lowe dg units and the whole set is factory finished in anthracite grey.

Door casing and window trim are typically the same width and are interchangeable.