• Unique industrial style
• Smooth opening
• Strong enough to transform huge wall sections
• Slimmest steel sightlines in the industry
• Infinitely customisable
• Space-saving

Maximum Leaf Width: 900mm

Maximum Leaf Height: 2800mm

Maximum No. of Leaf’s: 9

STANDARD – RAL Colours       

PREMIUM – Available in any RAL Colour        

Minimal Steel | Maximum Glass

We have carefully designed our B20 Profiles to create some of the slimmest sightlines in the industry, giving you a sophisticated, clean look that maximises natural light.

Variation of Opening Systems

Choose the perfect opening style to suit your needs. Whether you’re looking for French Doors, Sliding Doors, internal BiFolding Doors, or Pivot Screens, our Internal slimmest B20 Profiles are available in any design you wish.

Fully Customisable

Bring your vision to life with our extensive range of customisable features. From limitless configuration options to a comprehensive selection of handle styles and glass types, our fully bespoke designs pave the way for endless creative potential.

Transform Huge Wall Sections

As well as being visually stunning, the powerful multi-panel design of our Steel internal BiFolding Doors is strong enough to open up even the most significant wall sections to an abundance of natural light. 

Space-Saving

Take the unique space-saving benefits of interior bifolding doors to the next level with our ultra-slim B20 design.

Our signature B20 Internal BiFolding Doors redefine the concept of luxury and functionality. Crafted with a captivating industrial aesthetic and sturdy steel frames, these doors are unparalleled in their elegance and performance. The combination of multipanel design and robust steel frames transforms them into more than doors – they become architectural features that can replace entire walls, inviting daylight and spaciousness into your living spaces. Minimal Steel | Maximum Glass

Our commitment to design excellence is evident in the slim sightlines of our B20 Profiles, setting new standards for aesthetics and maximizing natural light infusion.

Elevate Your Home’s Elegance with Internal Bifolding Doors

Select from a range of opening systems that suit your preferences, including French Doors, internal Sliding Doors, interior BiFolding Doors, and Pivot doors. Our slim B20 Profiles can be tailored to any design you envision.

Embrace complete customization with an array of features. Endless configuration possibilities, handle styles, and glass types empower you to bring your creative vision to life through our bespoke designs.

Beyond their visual appeal, our Steel internal BiFolding Doors possess the strength to transform vast wall sections into conduits of natural light, making a striking visual impact.

Elevate space-saving solutions with our ultra-slim B20 design, taking the advantages of bifolding doors London to a whole new level. Experience luxury, innovation, and seamless integration with the B20 Internal BiFolding Doors.

Black Steel Doors: Premium Internal Bifolding Doors UK

Experience the ultimate blend of elegance and functionality with our signature B20 Internal BiFolding Doors, meticulously designed for the discerning homeowner. Our bifolding doors redefine luxury living, boasting a unique industrial aesthetic, robust steel frames, and a multipanel design that transforms entire walls, inviting an abundance of natural light into your space. The minimal steel and maximum glass of our B20 Profiles create some of the industry’s slimmest sightlines, enhancing the sophisticated, clean look that maximizes natural illumination.

Transform Your Living Space with Sleek and Stylish Internal Bifolding Doors

Choose from an array of opening systems to suit your needs, including French Doors, Sliding Doors, internal BiFolding Doors, and Pivot Screens. Our slim B20 Profiles are versatile and can be customized to any design you envision, making our internal bi-folding doors a perfect choice for your home.

Our fully customizable options provide endless creative potential. From various configuration possibilities to a comprehensive selection of handle styles and glass types, our bespoke designs allow you to bring your vision to life. Our internal bifold doors offer limitless possibilities, enabling you to craft a unique aesthetic that resonates with your style.

The powerful multi-panel design of our Steel internal BiFolding Doors is strong enough to transform even the most significant wall sections, creating a visually stunning impact. The internal bi-fold doors are not just doors; they are architectural features that redefine your living spaces.

Discover Black Steel Doors: The Best Internal Bi folding Doors in the UK for Modern Homes

Our internal bifolding doors are designed to be space-saving, with the ultra-slim B20 design taking the benefits of bifolding doors in London to the next level. The sleek design of our interior bifolding doors ensures that they seamlessly integrate into any setting, enhancing both the aesthetics and functionality of your space.

The interior bi-folding doors are an epitome of modern luxury, offering a blend of style, strength, and sophistication. With our internal bifolding doors, you can transform your home into a haven of light and space, where design meets practicality.

Enhance Your Interiors with Black Steel Doors’ Superior Internal Bi-folding Doors UK Collection

Discover the difference with our B20 Internal BiFolding Doors – where minimal steel meets maximum glass, and innovative design meets unparalleled functionality. Elevate your home with our bifolding doors, crafted to inspire and impress.

See also >> External bi-foding doors.