Determining Offset

Determining Flush or Offset Dimensions for Hinges and Locks

Offset and its terminology can be very misleading. Simply put, Offset is the difference in measure between one mounting surface and another. In most cases, commercial refrigeration doors are considered offset because the door is closing onto the door frame in order to accommodate a gasket, thus making the door surface "offset" from the frame surface.

In the case of door hinges, measuring the correct Offset is imperative because it is a fixed point and not adjustable. 




This hinge, for example, is OFFSET 3/4". The hinge bracket, or base  as it also known, will mount to the door frame while the hinge leaf, (strap), will mount to the door itself. As mentioned above, doors closing against the frame are Offset because the mounting surface of the door and door frame are different from one another. 

Offset for hinges is cast into the bracket. Offset is generally available in 1/8" and 1/2" increments up to 4". In some cases, hinge brackets may have limited Offset selections.

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