Internal steel doors: Innervision options, privacy glass and sizing

• 16 November 2025
• News

Gone are the days when internal steel doors played a low-key and unexciting part in dividing rooms – generally office spaces. Today, the internal steel door has a starring role of its own; one that shapes light, sightlines and the way spaces are experienced. Crittall Windows’ Innervision doors use slim steel frames and expansive glass panels to frame views, drawing daylight deep into interiors while creating a sense of openness. 

For designers and specifiers, the system combines visual clarity with technical precision, offering a wide range of options, all supported by detailed design resources for confident early stage specification. 

Clean lines and natural light

Innervision doors bring clean lines and a modern look to any project. The slim sightlines encourage natural light and support a strong architectural rhythm, whether you are specifying single doors, double doors or fixed screens. All doors are made in Britain and sized to order, so designers can work confidently with narrow openings or full height room dividers. This robust system accommodates a wide range of glazing choices, including privacy glass for meeting rooms, bathrooms or areas that need screening without a loss of brightness. Toughened and laminated options provide superior protection while maintaining the benefits of steel doors and the low maintenance associated with a damp cloth clean. 

Sliding doors: flexibility and space efficiency

Sliding internal steel doors extend the design potential further. Their lightweight construction supports smooth operation and offers flexibility in apartments, studios and commercial spaces where floorspace is at a premium. Pocket, rebate and face mounted configurations are available, allowing the doors to function as discreet partitions or prominent steel door dividers.  

Fire rated doors: protection without compromise

For projects requiring certified safety, Innervision fire rated doors provide FD30 protection while retaining slim frames and expansive glazing. Single or double leaf doors and fixed screens combine fire resistance with a clean aesthetic, giving specifiers peace of mind that essential safety standards are met without compromising design intent. 

Privacy glass and customisation options

Privacy is a key consideration in many modern interiors. Innervision internal doors can be fitted with reeded, satin or patterned glass to soften views while maintaining daylight. The range of personalisation options includes hardware, colour and finish, allowing designers to introduce a touch of elegance while keeping the doors aligned with the overall scheme. 

All Innervision internal steel doors are custom made to the exact size and specification required. This flexibility supports consistency in layout, slim sightlines and large glass panels across residential and commercial projects. Whether used as room dividers, front doors or internal screens, the doors integrate seamlessly into modern interiors. 

Durability, finishes and long-term performance 

Hot-dip galvanised steel ensures long-term durability and low maintenance. Available in a wide range of RAL and BS colours, including iconic black steel doors, Innervision doors offer a refined industrial character while standing the test of time. For designers seeking clarity, flexibility and a modern look, these internal steel doors remain an excellent choice. 

• For more information about Innervision doors, contact us here.