• The threshold ONLY is manufactured from aluminium, all other details remain the same.
• Designed for open In Doors ONLY, Residential or Commercial.(See how to measure)
• On open out doors, ONLY as an internal room divider, e.g between a lounge and a conservatory.
• There is an addtion in cost for this option.

We recommend a standard threshold as your first choice for a fully weather rated and enhanced security.