Coldroom Door Offset - What is it?

Door Offset 

The door offset is the thickness of your door including the gasket or door seal. If your door is 100mm thick and the gasket is 20mm, your offset is 120mm.

Some doors are recessed or partially recessed. These doors would have a smaller offset than a fully overlapping door which are usually around 80mm - 120mm. Recessed doors might be between 40mm - 60mm. A fully recessed door would be classed as a flush door with no offset.

Please see 'D' in the image below: