slimline Aluco doors, one of the best internal doors to match the style of steel.

Floating Lock Steel Look Internal Doors

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01480 436578

MINIMALIST, Luxurious and beautiful

the slimmest possible internal doors

Exclusively designed and made by Aluco, our floating lock™ steel-look internal doors come with the thinnest glazing bars.
The closest match to original metal doors, or fully glazed with the unique Aluco Floating Lock™ design.

internal steel-look doors between a lounge and hallway

contemporary or traditional

The closest to a steel door

Aluco floating lock™ steel look internal doors give you the best possible styling of steel doors, crafted with our exclusive 20mm glazing bars. Unique in appearance with an even better steel look than other doors and our slimmest offering, these also feature another inspired design feature, the floating lock™ design. Where other doors use additional profiles for the familiar thicker lock and handle backplate, Aluco has created a fluid design where the backplate blends in with the glass line. No other door looks as authentic as an Aluco.

fully glazed or grid

Luxurious and Functional Aluco Interior doors

Creating the most contemporary appearance with the iconic appeal of classic metal doors is our fully glazed option. Aluco ultra slim steel look internal doors with the floating lock™ design are also available without the glazing bars. Perfect for doors in a more modern style, these provide maximum visibility through the doors and the appearance of connected rooms. The best possible use of bespoke aluminium and quality glass, in a design not available with any other internal steel-look door. We can even create a separate floating lock™ with slimline bars.

steel look interior doors in a slimline style between a hallway and lounge

Bespoke ultra slim steel look interior doors

Redesigned and re-engineered, Aluco ultra slim steel look interior doors are the pinnacle of impressive design, bringing you even closer to steel doors. Meticulously crafted around the glass, our doors are more solid in feel with a weight that feels absolutely on point. An impeccable combination of aluminium and design know-how combined with the best looking doors with impeccably clean lines throughout. When closed, the overlapping frame design adds a touch of sleekness and finesse, guaranteeing superior sealing and acoustics. Aluco’s ingenuity lies in its centralized glazing design, a feature that makes it truly unique, offering identical sightlines and appearance on both sides of the door set. The perfectly balanced styling and true symmetry make these doors not only functional but also a delight to behold and use every day in your home or office.

Designed to provide the best possible style, design and authentic appearance, Aluco ultra slim steel look interior doors are premium doors made with care, and every door hand-finished. Available as single or double doors opening in or out. We expertly manufacture all manner of door configurations, also as combination screens with side panels, corner designs or built for individual spaces, sizes and requirements.

Door sizes with our floating lock™ design go as wide as 900mm for a single door, 1800mm wide for double doors, and door leaves up to 2500mm high. A choice of lock options allows these doors to work in any living room, dining area, hallway and even bathrooms and cloakrooms with flexible lock and latch options and finished with designer, modern or period hardware. Another excellent design feature of Aluco doors is also being able to craft doors to suit your property and how you use it. Shapes, angles, and even bespoke products creating a purpose-designed door or screen are all available.

Glass is available as clear, patterned, textured or reeded glass. Elegant, refined, made-to-order Aluco doors enhance homes and commercial properties with functionality and impressive style.

Whichever bespoke door we create, each promises something truly special for your space from one of the original designers and creators of steel-look, heritage and industrial-styled doors. Only we make our products, and our carefully selected, fully trained and approved Aluco Distributors professionally install them. Such is the quality of Aluco ultra-slim steel look internal doors. We are confident they are the last doors you will ever buy.

for internal doors, the difference is aluco

ultra slim design

Slimmer than other doors with a 20mm glazing bar creating steel-inspired or contemporary glass and metal doors.

internal steel-look doors between a lounge and hallway
  • Exclusive slim 20mm glazing bar.
  • All glass option, no bars available.
  • Aluco-designed floating™ lock.

The standard design

The standard design uses thicker glazing bars, mullions or transoms and the only option on other door brands.

Picture of steel look black doors in a lounge
  • Standard glazing bar design.
  • Standard lock design.
  • Bolder styling.

Examples of aluco products installed

aluco windows and doors in a barn conversion

Industrial style Barn Doors – Cirencester

An installation of our premium industrial style barn doors in Cirencester Gloucestershire fitted to commercial premises used as a popular wedding venue.  Made from the Aluco Exterior Collection of steel-look doors and installed by L & ...

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Steel look windows in Gloucestershire

Crafted by Aluco and professionally installed by L and L Installations, an expert Aluco and aluminium home improvement company, an installation of Aluco steel look windows in Gloucestershire to a beautiful character cottage. Our sophisticated ...

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Industrial style French doors in Wiltshire

The potential of an Aluco product to create captivating and focal-point designs is shown in this installation of industrial style French doors in Wiltshire. A bespoke screen spanning floor to ceiling creates a great entrance ...

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Buying Guides

Unique features and benefits only with Aluco Windows and Doors

At Aluco, we pride ourselves on leading the way in designing and manufacturing external steel-look doors, windows and screens for your home. Aluco windows and doors come with our reputation for quality, innovation, style and ...

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Glazing bars for aluco steel look internal doors, French doors design, showing doors in a brick opening for aluminium vs steel article

Sliding vs hinged internal doors – which is best?

Want to get the perfect interior door for your home or commercial space? You have the choice of sliding vs hinged internal doors, and both provide an excellent internal door solution. At Aluco, we specialise ...

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picture of Aluco aluminium internal doors open with a dog sat between them

How to choose the perfect internal room divider

When it comes to selecting the perfect internal room divider for your home and for a commercial space like an office shop or café, the bespoke nature of Aluco internal doors and screens provides the ...

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Architectural glazing solutions blended with precision engineering to transform your living space into something truly extraordinary...

National Coverage

Aluco Aluminium products are installed and supported by a national network of installers.

15:14 22 Mar 23
Just completed house renovation, using all the internal bespoke doors with glass panels. Absolutely delighted with the quality of doors and service. I was assisted every step of the way in getting the right size and format of extremely tall door. Keiran has been exceptionally helpful to deal with over the months from ordering to completion. 10/10I never usually do reviews but but I would say the whole experience and end result that has been achieved has been amazing.
Sarah PattersonSarah Patterson
15:28 13 Mar 23
So pleased with our new Aluco bifold doors, the best we could find on the market! We wanted bifolds with maximum glass area and no bulky frame and the Aluco doors were the perfect choice. Stunning, deep matte black colour, high quality, great choice of hardware and a first-class service. Highly recommend!
Michael HanksMichael Hanks
12:56 10 Mar 23
I've been looking for sometime to find a professional company to fit my new windows and doors and I'm so pleased I found you guys! - Aluco's products are 1st class and so easy to arrange, I just called Aluco, spoke to a very helpful lady who put me in touch with my local installer. I would definitely recommend this product & company :o)
Pauls Mc CrarrenPauls Mc Crarren
10:15 10 Jan 23
I recently had 3 sets of ALUCO exterior crital styled steel framed doors fitted to my property as part of an ongoing renovation. After looking around at various options Aluco was the only manufacturer that I felt could deliver the style I was looking for. With most other companies I thought the design was bulky and not finished to the finesse Aluco has achieved . Based on my experience I can honestly thoroughly recommend this manufacturer and will look to use them again on any future projects
Richard HansonRichard Hanson
09:42 20 May 22
Aluco is leading the way in steel look windows and doors, they are high quality, competitively priced and offering excellent external and internal ranges. We are extremely happy to supply their products to our valued customers.