Double Sided Lock Door Knob

Reliable access control starts with hardware that performs consistently across daily use and high-traffic conditions. The Double Sided Lock Door Knob offers a practical locking solution for both interior and light commercial applications, combining mechanical stability with a clean architectural appearance. This commercial lockset fits a wide range of door types including flush timber, wooden, aluminium, and steel doors, making it suitable for diverse installation environments. A solid stainless steel knob and rosette provide durability against wear, while the brass cylinder and matching brass keys ensure smooth key operation and dependable locking performance over time. Each set is supplied complete with latch, striking plate, fixing materials, and installation manual, enabling straightforward setup without additional sourcing.

1. Two-Sided Knob Operation

The DDLK003 Double Sided Lock Door Knob places a round knob on each side of the door for convenient gripping and operation from either direction. Its matching two-sided appearance supports projects requiring consistent interior and exterior hardware. A brass cylinder and keys provide mechanical locking for everyday key management in residential, office, and commercial spaces.

2. Stainless Steel Knobs

Both the knobs and rosettes are made of stainless steel to support repeated gripping, rotation, and door movement. Rosette diameters of 65mm and 75mm allow selection according to the available door surface, existing preparation, and desired visual proportion. The Double Sided Lock Door Knob covers the installation area with a clean, coordinated circular trim on both sides.

3. Two Mechanism Types

DDLK003 is available with either a tubular or cylindrical mechanism, allowing buyers to select the construction according to door preparation, regional practice, and project requirements. Each mechanism requires a corresponding internal space and bore arrangement. Confirming the mechanism before production helps door manufacturers prepare accurate drawings and prevents mismatch between the Double Sided Lock Door Knob and door openings.

4. Adjustable Backset

The backset adjusts between 2-3/8 inches and 2-3/4 inches, corresponding to 60mm and 70mm from the door edge to the bore center. The Double Sided Lock Door Knob fits doors from 1-3/8 to 1-3/4 inches thick, approximately 35mm to 45mm. These dimensions simplify specification and reduce inventory variation in mixed-door projects.

5. Five Coordinated Finishes

DDLK003 is available in satin stainless steel, antique brass, antique copper, polished brass, and US10B finishes. The color range coordinates with flush timber, wooden, aluminum, and steel doors. Buyers can match the Double Sided Lock Door Knob with hinges, door stops, and other visible hardware to maintain a consistent finish throughout the project.

1. Apartment Interior Doors

Bedrooms, studies, and storage rooms in apartments can use the Double Sided Lock Door Knob for convenient operation from both sides. Its 35mm to 45mm door-thickness range covers many residential wooden doors, while 60mm and 70mm backsets accommodate different preparations. Five finishes can be coordinated with interior door colors and surrounding hardware.

2. Office Rooms

Private offices, meeting rooms, and record rooms require two-way passage together with mechanical key management. DDLK003 uses a brass cylinder and keys and offers tubular or cylindrical mechanisms. The Double Sided Lock Door Knob also provides 65mm and 75mm rosettes for different door proportions, including wooden, aluminum, and steel office doors.

3. Hotel Service Areas

Staff offices, linen rooms, storage rooms, and equipment spaces can use DDLK003 for area-based key allocation. The stainless steel knobs and rosettes of the Double Sided Lock Door Knob support repeated everyday operation. SSS, antique brass, and polished brass finishes suit varied door designs, while the adjustable backset simplifies purchasing for different service doors.

4. Commercial Service Stores

Offices and storage rooms in retail stores, studios, and community service businesses can use the Double Sided Lock Door Knob for two-sided operation and mechanical locking. It supports flush timber, aluminum, and steel doors with two mechanism types available. The 65mm or 75mm rosette also suits new installations and hardware replacement on existing doors.