What size polished chrome letter plate do I need?

Most doors use a 10" x 3" (254mm x 76mm) letter plate, but 12" x 4" (305mm x 102mm) is popular for larger post. Measure your existing cut-out and door thickness before ordering.

Are polished chrome letter plates suitable for uPVC and composite doors?

Yes—many are suitable, but sleeved letter plates are often the best option for uPVC and composite doors as they provide a liner through the door and a neater internal finish.

What is the difference between sprung and gravity flap letter plates?

Sprung models use a spring mechanism to control closing and can feel more positive in use. Gravity flap models rely on the flap’s own weight for closing and are simple, durable, and reliable.

How can I reduce draughts from a letter plate?

Add an internal letter flap and/or a letterbox draught excluder. These help reduce heat loss, cut down noise, and improve the internal appearance of your door.

How do I clean and maintain a polished chrome letter plate?

Wipe with a soft microfibre cloth and avoid abrasive cleaners. Regular gentle cleaning helps maintain the mirror-like shine and reduces marking, especially on exposed doors.

Polished Chrome Letter Plate

Polished Chrome Letter Plates for Modern, High-Shine Front Doors

Shop premium polished chrome letter plates designed to give your entrance a clean, contemporary look. With a bright, mirror-like finish and durable construction, these chrome letter plates suit both modern and traditional properties while offering smooth daily use and long-lasting performance.

Supplied by Trade Door Handles, trusted UK supplier of architectural ironmongery since 1976, with nationwide next-day delivery.

What is a Letter Plate?

A letter plate (often called a letterbox) is the external flap and aperture fitted through a door for secure mail delivery. Quality designs help reduce draughts, protect against weather, and keep the front door looking tidy and finished.

Choosing the Right Size

The most common option is 10" x 3" (254mm x 76mm), which fits many standard door cut-outs. If your home receives larger post, magazines, or thicker mail, 12" x 4" (305mm x 102mm) can be a better fit. Always measure the existing cut-out and fixing centres (where applicable) before ordering.

Styles, Flaps & Door Compatibility

Our range includes practical options such as sprung letter plates (for controlled closing) and gravity flap models (simple, reliable operation). For uPVC and composite doors, consider sleeved letter plates (with an internal liner) to suit thicker door constructions and provide a neater finish through the door.

Reduce Draughts & Improve the Inside Finish

If heat loss or internal appearance is a priority, pair your letter plate with an internal letter flap or letterbox draught excluder. These accessories help minimise cold air, reduce noise from the flap, and give the inside of the door a cleaner, more premium look.

Why Choose Polished Chrome?

Polished chrome is a popular choice for front doors because it offers a bright, reflective finish that matches other modern door hardware (handles, knockers, numbers, and escutcheons). It’s also easy to maintain—ideal for busy households and high-traffic entrances.

Care & Maintenance

To keep the shine looking its best, wipe with a soft microfibre cloth and avoid abrasive cleaners. For coastal or exposed locations, regular cleaning helps preserve the finish and reduce surface marks from the elements.