3 Hinge Position On Fire Doors

190 200mm 9inches from the bottom.

3 hinge position on fire doors. The top hinge need to be positioned approx. 170 180mm 6 inches from the top. For light weight internal doors two 3 butt hinges should be adequate. Is there a preferred position for the top and bottom hinges up the edge of the door.

From what i understand it is best to have one hinge near the bottom and two hinges near the top of the door to take the weight rather than three hinges equally spaced. When hanging heavy exterior doors fire check doors hardwood doors or doors in a bathroom airing cupboard for example you should mark a line and position for a third hinge in the center of the door and frame as well. The top hinge is a little closer to the top usually about 7 as it is always in tension with the forces applied. With fire resisting doors becoming heavier there is a practice to fit two hinges at the top of the door with the third hinge at the bottom of the door.

How to determine hinge spacing on a door. This means that in the event of a fire all of these doors will close and latch without a person s help. 7 8 2017 9 54 05 pm. When a door starts to sag and hang crooked it always does so from the top so the upper part of the doorknob side is where it will start to catch.

For heavier doors i use two 4 butt hinges or for very heavy doors three 4 butt hinges. This is accomplished through the use of a closer or spring hinge and a fire rated lockset or exit device. I have got the frames fixed in place and now need the hang the doors a first for me. All fire doors have an additional safety feature they must be self closing and self latching.

Bigger solid core doors require 3 or 4 or more hinges with ball bearings. Hinges are generally spaced out equally to also keep the door straight. 1 3 4 doors 4 1 2 hinges hinge location chart. Figure 1 shows a standard hinge arrangement.

Light hollow core doors that are 6 8 only require 2 hinges with a cheap pin. I will have two doors one from the kitchen into the lobby the other from the lobby to the bathroom. It is unsafe to alter the as tested position of a hinge on a fire door without assessment from a suitably qualified authority. I have a few doors to hang shortly.