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Is there a way of determining the position the hinges need to go on a door?

March 12, 2014 by · Comments Off on Is there a way of determining the position the hinges need to go on a door? 


standard positioning of hinges on a fire door

Hinge positioning is determined by the size, weight and construction of the door and its intended use.  The top and bottom hinges are easy – around 250mm from the top and bottom of the door.  The most common position for the third hinge is in the middle, this is a good position where the loading is normal.  The middle hinge will also stop a door from warping in a humid environment.  Where a door is heavier, wider or has a door closer, then the middle hinge should be moved up to about 200mm below the top hinge.  When four hinges are used due to extra weight, height, width, abuse level, the hinges can be either equally positioned or set as two pairs at the top and bottom separated by about 200mm.

How many hinges are needed on a door: some have three, some have two, why?

February 2, 2012 by · Comments Off on How many hinges are needed on a door: some have three, some have two, why? 

Usually at least 3 hinges need to be fitted on a door.  Light weight internal domestic doors may be fitted with only 2 hinges.  Doors with a security function need to have at least 3 hinges, as this makes them more difficult to force.  Fire Regulations require fire doors to be fitted with 3 hinges (which must be 4 inch fire certified hinges).  For doors over 2200mm tall, then four hinges can be used to prevent warping. Consider any other factors that increase the loadings of hinges and their fixings – extra wide doors, high level of abuse, e.g. school or hospital.

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