Yale Lockmaster 21 Stable Door Lock

Yale’s Lockmaster Stable Door Lock range combines superior functionality, elegant style, and robust security, making it the perfect choice for both contemporary homes and traditional cottages or farmhouses.

Designed to complement the unique design of modern stable doors, the Lockmaster range ensures optimal convenience and peace of mind for homeowners who value practicality, flexibility, and long-lasting dependability.

Key Security Features:  

• Enhanced Protection: Features Lockmaster’s signature hook and anti-lift pins on both top and bottom lock sections to deter forced entry and door lifting  
• Precompression Rollers: Pre-locking compression design ensures the door is pressed firmly against the frame before engagement — enhancing thermal insulation, weather resistance, and overall durability.  
• Flexible Shootbolt Options: Bottom section supports 29mm and 61mm shootbolt extensions, ideal for various PVCu door set configurations  

Specifications:

Top Leaf:  

Centre Case:  

• Lockmaster 21 Hook Centre, Designed for lever-handle operation  
• Reversible latch for easy handing, Includes a push-in latch snib to prevent accidental lockouts  
  
  
• Auxiliary Units: Lockmaster hook & anti-lift pin system   
   
• Faceplate: 16mm Stainless Steel (430), Yale-branded faceplate for a sleek, professional finish  

Bottom Leaf:  

Centre Case: 

• 35mm backset Lockmaster KeyTurn Deadbolt Centre 
• Auxiliary Units: Lockmaster hook and anti-lift pins for consistent protection  

Faceplate: 

• Square end faceplate with 90° return to accommodate shootbolt 
• Designed specifically for PVCu stable door compatibility  
  
  
• Shootbolt Extension Options: Available in 29mm and 61mm variants for bottom lock section  

Keep System:  

• 13mm handed One Piece Keep  
• Available for both top and bottom locks  
• Profile Compatibility: Supports profile-related packers for precise alignment 
• Packaging: Supplied in boxes of 5 units  

Performance & Certifications:

• PAS24 Compliant – Meets enhanced security performance standards  
• Secured by Design – Police preferred specification  
• Cycle Tested to 100,000 operations for long-term durability  
• 10-Year Mechanical Guarantee — Backed by industry-leading warranty support. 
• Included in the Yale Lifetime Security Guarantee — Confidence built to last. 
• Made in Britain — Precision engineered and manufactured in the UK