Cal-Royal CR3D44 3D Adjustable Invisible Hinges (Box of 2)

Usually Ships: 2-3 Business Days
  • For use with wood and hollow metal doors (1-1/2″ min. thickness)
  • Elegant minimalistic design, easy 3D adjusting system
  • Sold in boxes of 2 only

Available Options:


Cal-Royal CR3D44 3D Adjustable Invisible Hinges (Box of 2ea.), 7-3/32″ x 1-1/4″, 1-1/2″ Minimum Door Thickness

3D Adjustable Concealed Hinge for use with Wood and Hollow Metal Doors

  • Zinc Alloy manufactured for Oxidation Resistance
  • Durable Galvanized Steel Covers to conceal the screws
  • Easy 3D Adjusting System
  • Easy Installation and Maintenance Free
  • Complete Reversibility (same slot on the door and the frame)
  • Total Recessed Hinge Body (door and frame gap is very small)
  • Milling cut up to ¼” (6.5mm) from the internal edge
  • European Standard EN1634-1 for 90-Minute Fire Doors
  • CE Certified for 200,000 Opening / Closing Cycles
  • 100% Made in Italy
  • Elegant Minimalistic Design that is available in US1, US10B, US15, and US28 finishes with no visible screws


  • 180° Fluid Opening
  • 1 ½” (38mm) minimum door thickness
  • Overall Length: 7 3/32″ (180mm)
  • Width (frame part): 1 ¼” (32mm)
  • Width (door part): 1 ¼” (32mm)
  • Depth: 1 ⅛” (29mm)
  • Load Capacity: 3 or 4 Hinges – 135kg (298lbs), 2 Hinges – 120kg (265lbs)
  • Fire Proof Min. : EI-90’

Drilling templates and accessories available in our Hinge Accessories section



US1 Black, US28 Clear Anodized Aluminum, US10B Oil Rubbed Bronze, US15 Satin Nickel

Door Applications

Metal and Wood Doors (1-1/2" minimum door thickness)


7-3/32" x 1-1/4"

Box Quantity


Country of origin


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Cal-Royal CR3D44 3D Adjustable Invisible Hinges (Box of 2)