When it comes to upgrading your door hardware, choosing the right Lever on Plate is essential. The DUFIX DXL1137 Lever on Plate – DXL Series is a high-performance door handle solution designed for both residential and commercial interiors. Known for its durable finishes and ergonomic design, this lever offers a reliable way to enhance security and style.

In this blog, we’ll explore how the DUFIX DXL1137 works, its key benefits, applications, and how to choose the right finish for your needs.

What is the DUFIX DXL1137 Lever on Plate?

The DUFIX DXL1137 is a lever-on-plate door handle (also called an escutcheon handle). Unlike separate knobs or levers on small roses, this design mounts the lever on a solid rectangular backplate. The DXL Series is DUFIX’s premium line, known for:

Smooth spring return – The lever automatically returns to horizontal after use.
Anti-sag technology – Prevents the lever from drooping over time.
Multiple finish options – MB (Matt Black), SS (Stainless Steel), PVD, and AB (Aged Bronze).

This is a mechanical lever set – it operates a tubular latch. For high security, pair it with a separate deadbolt.

Key Benefits of the DUFIX DXL1137

1. Superior Finish Durability

The standout feature is the PVD (Physical Vapor Deposition) finish option. Unlike standard plating, PVD bonds to the metal at a molecular level, making it:

Scratch-resistant
Tarnish-proof
Salt-spray resistant (ideal for coastal homes)

The MB (Matt Black) finish offers a modern, minimalist look, while AB (Aged Bronze) suits traditional interiors.

2. Ergonomic Lever Design

The lever shape (model DXL1137) features a comfortable grip, reducing hand strain – especially important for elderly users or children. It meets ADA accessibility standards because levers require no twisting motion.

3. Easy Installation on Standard Doors

The plate covers existing holes (60mm or 70mm backset), making it a perfect retrofit for:

Bedroom doors
Office doors
Apartment entry doors (with added deadbolt)

4. Security Through Concealment

The solid plate covers the latch mechanism, preventing bypass attacks. All screws are hidden when the door is closed.

Applications: Where to Use the DXL1137

Setting	Recommended Finish	Why
Modern home – bedrooms	MB (Matt Black)	Matches black door hinges and light switches
Beach house – exterior door	PVD	Resists salt corrosion
Traditional bungalow	AB (Aged Bronze)	Complements antique brass hardware
Office – high traffic	SS (Stainless Steel)	Hides fingerprints, easy to clean
Luxury apartment	PVD (any color)	Premium look that lasts

Not recommended for: Uncovered external gates (use a dedicated weatherproof lock instead).

How to Choose the Right Finish for Your Needs

Choose PVD if you want maximum longevity and are installing on a door that sees daily use (main entrance, office).
Choose MB (Matt Black) if you prioritize modern aesthetics and are willing to wipe off fingerprints weekly.
Choose SS (Stainless Steel) if you need a low-maintenance, hygienic surface (hospitals, kitchens).
Choose AB (Antique Brass) if you are restoring an older home or want a vintage patina.

Installation Overview (15-Minute DIY)

Tools needed: Screwdriver only (Only for replacing an existing lever).

Steps:

Loose the cylinder screw.
Remove old lever by unscrewing the interior plate.
If got extra purchase new cylinder or mortise, take our the old mortise and insert the new mortise into the door edge – ensure the angled side faces the door frame.
Slide the exterior plate over the latch spindle.
Attach the interior plate, ensuring both levers are horizontal.
Tighten screws evenly – overtightening causes sticking.
Test: The lever should spring back after unlock 45°.

Full instructions are included in the box. If your door has non-standard prep, consult a locksmith.

Frequently Asked Questions (FAQ)

Q1: Is the DUFIX DXL1137 suitable for external front doors?

A: Yes – but only with the PVD or SS finish. PVD offers the best weather resistance. You must also install a separate deadbolt above it, as this lever alone is a handle set, must extra install together with mortise & cylinder then can consider as complete lockset install on door.

Q2: What is the difference between “Lever on Plate” and “Lever on Rose”?

A: A plate (escutcheon) is a rectangular backplate (typically 150-200mm long) that covers more surface area, hiding old holes. A rose is a small circular cover (about 50mm diameter). Plates are better for retrofits; roses look cleaner on new doors.

Q3: What is the backset measurement for the DXL1137?

A: Check the official product page – DUFIX DXL Series typically offers 60mm or 70mm backsets. Measure from your door edge to the center of the existing bore hole before ordering. The wrong backset will not fit.

Q4: Can I install this myself, or need a professional?

A: Not recommend to do self installation. If your door already has standard 54mm bore holes and 25mm edge holes, you can DIY in 15 minutes. If you need to drill new holes, do adjustment during the lock installation. The included paper template helps with alignment.

Q5: How do I clean the PVD finish without damaging it?

A: Use only mild soap (dish soap diluted 1:10 with water) and a soft microfiber cloth. Never use abrasive powders, bleach, vinegar, or citrus-based cleaners. For MB finish, just use wet cloth and wipe weekly to avoid visible fingerprints.

Q6: Is the lever reversible for left-handed doors?

A: Yes, most DUFIX levers are field-reversible. The front & back handle are the same pattern design with different direction of handle only. Try switch the front & back handle to ensure the door whether is left or right handle. The instruction sheet shows the exact process.

Q7: What warranty does DUFIX offer on the DXL1137?

A: This varies by finish and region. PVD finishes typically carry 5-10 years against tarnish and corrosion. MB and AB finishes may have 1-2 years. Verify the exact warranty card on the product page at artdoors.com.

Q8: Does the box include a mortise latch and screws?

A: No – the box only includes: 2 levers (interior & exterior), all mounting screws, and a paper template. The mortise & cylinder lock need to extra purchase to make the whole new set complete in order to do replacement or new install. It does not include a door frame strike plate – reuse your existing one or buy separately.

Q9: What is the difference between DXL1137 and other DXL models (e.g., DXL211)?

A: The number typically indicates lever design and plate length. DXL1137 likely has a round straight lever with a 150mm plate, while DXL211 may have a square lever & plate. Check the dimensions on the product page

Q10: Where can I buy spare parts if I lose a screw or spring?

A: Contact Artdoors customer service directly (email or phone on their website). DUFIX brand part does not sell spare parts through third-party retailers. Keep your purchase receipt for warranty claims.

Q11: Can I use this with a smart lock?

A: Not directly – the DXL1137 is a purely mechanical lever. For a smart setup, install a separate electronic deadbolt or digital rim lock above this lever. The lever provides daily entry/exit, while the smart lock handles security.

Q12: What is the maximum door thickness this fits?

A: Standard DUFIX levers fit doors 35mm to 45mm thick. For thicker doors (e.g., 50mm fire doors), you may need a longer spindle – check if Artdoors sells extension spindles separately.