
The Story
Gainsborough Black Yarra Ridge Sliding Patio Door Double Cylinder Deadlock is a reliable locking solution designed for aluminium and timber sliding doors, ensuring security and durability.
The Gainsborough Black Yarra Ridge Sliding Patio Door Double Cylinder Deadlock features twin counteracting beaks that engage an all-metal catch plate, providing resistance to jemmying and preventing the door from being lifted off its rails. This lock fits industry-standard three-hole door cutouts and accommodates a wide range of door stile thicknesses, making it suitable for both left-closing and right-closing doors. Designed and manufactured in Australia, this all-metal lock operates with a key or lever once the door is closed, ensuring robust security for your sliding doors.
Features
- Twin counteracting beaks for enhanced security
- Fits industry-standard three-hole door cutouts (three 9mm diameter holes)
- Compatible with door stile thicknesses from 21.3mm to 46.4mm
- Suitable for both left-closing and right-closing doors
- Designed for use with aluminium and timber sliding doors
Specifications
| Dimensions (W x H x D) | 94mm x 180mm x 39mm |
| Weight | 1.35kg |
| Material | All-metal |
| Colour | Black |
| Model Number | YR4550BLV |
The Gainsborough Black Yarra Ridge Sliding Patio Door Double Cylinder Deadlock is designed for exterior use.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Gainsborough Black Yarra Ridge Sliding Patio Door Double Cylinder Deadlock is a reliable locking solution designed for aluminium and timber sliding doors, ensuring security and durability.
The Gainsborough Black Yarra Ridge Sliding Patio Door Double Cylinder Deadlock features twin counteracting beaks that engage an all-metal catch plate, providing resistance to jemmying and preventing the door from being lifted off its rails. This lock fits industry-standard three-hole door cutouts and accommodates a wide range of door stile thicknesses, making it suitable for both left-closing and right-closing doors. Designed and manufactured in Australia, this all-metal lock operates with a key or lever once the door is closed, ensuring robust security for your sliding doors.
Features
- Twin counteracting beaks for enhanced security
- Fits industry-standard three-hole door cutouts (three 9mm diameter holes)
- Compatible with door stile thicknesses from 21.3mm to 46.4mm
- Suitable for both left-closing and right-closing doors
- Designed for use with aluminium and timber sliding doors
Specifications
| Dimensions (W x H x D) | 94mm x 180mm x 39mm |
| Weight | 1.35kg |
| Material | All-metal |
| Colour | Black |
| Model Number | YR4550BLV |
The Gainsborough Black Yarra Ridge Sliding Patio Door Double Cylinder Deadlock is designed for exterior use.










