Upgrade your interior doors with these Frankfurt linear mortice door knobs from Designer Levers. Finished in matte black with fine precision fluting for a distinctive modern look, they feature a sprung push mechanism for smooth, reliable operation.

Supplied as a pair, they offer a highly durable construction that is BSEN 1906 certified and fire tested to FD30 and FD60. They also come backed by a 10-year mechanical guarantee for complete confidence.

Suitable for solid interior doors, they are supplied with an 8mm square spindle and fixing screws. They can be used with a tubular latch or mortice lock, which are sold separately.

• Matte black finish – fine precision fluting for a modern look
• Sprung push mechanism – ensures smooth daily operation
• Highly durable construction – built for lasting performance
• Fire tested FD30 and FD60 – suitable for use on fire doors
• BSEN 1906 certified – meets the required standard for door handles
• 10-year mechanical guarantee – long-term confidence in performance
• Fixings included – supplied with an 8mm square spindle and screws
• Available in a choice of finishes

Delivery (UK mainland only)

 

Next Day: £5, or FREE over £40

- Order by 9pm Mon-Thu: next working day

- Order Fri to 5pm Sun: Monday

- Order after 5pm Sun: Tuesday

 

Pre-12pm: £10

- Same cut-offs as Next Day above

 

Saturday & Sunday: £10, or £5 over £40, or FREE over £75

- Saturday: order by 6pm Fri

- Sunday: order by 4pm Sat

 

Heavy items (over 30kg)

- Mon-Fri only. Order by 6pm and allow up to two working days

- Order after 6pm Thu: arrives after the weekend

 

Supplier items

- Sent directly by the supplier, so timings vary. Lead times appear on the product page in working days (Mon-Fri)

 

More about delivery 

Next Business Day Collection (eligible items)

- Order by 9pm Mon-Thu: collect next day

- Order after 9pm Thu to 5pm Sun: collect Monday

- Heavy items (over 30kg): allow up to two working days

 

Opening hours

- Weekdays vary by branch: open 6:30am-7am, close 6pm-8pm

- Saturday: 7am-6pm

- Sunday: 9am-4pm

 

Check your local store's hours and that it's open before visiting. Please wait for our text or email before collecting.

 

Holding your order
We'll hold it for 14 days, then automatically refund your original payment method.