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Trinity Black Glazed - Prefinished Internal Doors

By Deanta Doors

: £236.25

  • 10 Year Guarantee against Manufacturing Defects
  • Price Match Promise
  • 48hr Express Delivery available at checkout

Want a Complete Package?
Choose a Pre-hung Door Set

Make installation quicker, cleaner, and more convenient with a complete doorset — the ideal solution if you're starting from scratch or renovating.

Why choose a door set?

  • Everything in one – Includes the door, pre-hung in its frame on three hinges with a latch or bathroom lock pre-fitted.
  • Time-saving install – Pre-assembled components reduce fitting time
  • Perfectly matched parts – No guesswork on what hardware fits
  • Clean, consistent finish – Factory-prepped for a more professional result
Fully Finished

Fully Finished

High grade materials

High Grade Materials

10 Year Guarantee

10 Year Guarantee

Product Information

The Deanta Trinity Prefinished Black internal door with glass combines contemporary styling with functional design. Its three vertical square panels are fitted with clear beveled glass, allowing light to pass through interiors while maintaining privacy.

The sleek black finish enhances the precision of the triple-square layout. The balanced panel layout creates a clean, structured aesthetic that suits modern and transitional schemes throughout the home. Supplied prefinished and ready to hang, it helps achieve a high-end look with minimal on-site work. The glazed panel allows natural light to flow between rooms while maintaining a strong, architectural frame. With an average weight of approximately 31kg, it has a reassuringly solid feel in day-to-day use.

  • Black Prefinished and ready to hang
  • Fitted with clear intricate one-sided bevelled glass
  • Triple square vertical panel design with glazed panels
  • 32mm total can be taken off the width and height of each door (16mm from any edge)
  • Covered by Deanta's 10-year manufacturer's warranty
Technical Specification
Category
Brand
Glazing
Clear Bevelled Glass
finish
These doors have been factory decorated and don’t need any further decoration.
Panels
Colour
Construction
The construction of the door covers both the design and weight of the door.

Heavyweight (Solid Core) – The heaviest form of construction -  generally solid particle board with real timber lippings.
Engineered Solid Core (Heavyweight)
Lipping
The lipping is the timber material around all edges of the door from which your joiner can trim the door down in height and width, as well as fit hinges/ locks too.

Trim allowances vary by lipping size, door design and fire rating - please contact us for more information about your desired door’s trim allowance.
18mm
Average Weight
31.0kg
Raised Mouldings
Both Sides
Suitable To Use As Pairs
Yes
Suitable For
Need any help or assistance?

Should you have any questions about any of our products or aftercare, please don't hesitate to contact us on the following details:

01246 380283

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Standard UK Door Sizes:

  • 1981 x 381/419 x 35mm (sidelights/side panels)
  • 1981 x 457/533 x 35mm (cupboard/wardrobe)
  • 1981 x 610/686/711 x 35mm (restricted spaces)
  • 1981 x 762 x 35mm (most common internal door size)
  • 2032 x 813 x 35mm (usually former external door size)
  • 1981 x 838 x 35mm (mobility/wheelchair access)

Metric Door Sizes (Popular in Europe/Scotland):

  • Height: 2040mm
  • Width: 426/526/626/726/826/926mm
  • Thickness: 40mm

Measurement Tips:

  • Measure door opening for height, width & thickness.
  • Allow 2-3mm gap around the door for proper operation.
  • Contact us for bespoke sizes.

Trimming Guidelines:

  • Engineered timber doors can be trimmed to fit; consult our guidelines or contact us for advice.

View Our Full Size Guide

If you are unsure about your sizing, please contact us for assistance. We also offer bespoke / made to measure doors.

Get in touch if you need help with anything or if you have any questions about our products.

Contact Us