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Hinge position on fire doors.
Fire door keep shut or fire door keep locked.
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The total hinge grade range is from 1 to 14 for doors and windows within the summary classification table of bs en 1935 2002 the above table covers the classification for door hinge range only.
Figure 1 shows a standard hinge arrangement.
The relevant grades given are based on 3 hinges being fitted to the door as illustrated in figure 1 of the hinge spacing code of practice.
Hinges made of aluminium will be of no use on a fire door it is crucial to check fire certification.
1 3 4 doors 4 1 2 hinges hinge location chart.
4 6 out of 5 stars 405.
How to determine hinge spacing on a door.
Figures 2 3 and 4 detail hinge positions for doors where the hinges are operating at the near the maximum load capacity or where door closers particularly back check closers are in use and the door is in a high frequency of use environment.
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 example for a 1 3 4 inch thick door with a rating of up to 3 hours and a door size up to 4 feet wide and 8 feet high table 6 4 3 1 allows a mortised or surface mounted steel hinge 4 1 2 inches high and 0 134.
Table 6 4 3 1 specifies the hinge size and thickness depending on the door size thickness and fire rating and the hinge type.